Tony, J., H.H. Ahmad Sah, Y.C.K. Sin, N. Movin, L. Berman, T.U. Grafe & F. E. Rheindt 2022. Birding in Brunei: Borneo’s hidden jem. BirdingASIA 37: 43–56.

Aylen, O., P.J. Bishop, R. Abd Wahab & T.U. Grafe 2022. Effectiveness of acoustic lures for increasing tropical forest understory bat captures. Ecology and Evolution 12 (4): e8775.

Khalid, S., T.U. Grafe, J. Tony, A. Walshe & A.J. Hearn 2021. Recent photographic records of Otter Civet Cynogale bennettii from Brunei, Borneo. Small Carnivore Conservation 59 e59003.

McGrath-Blaser, S., M. Steffen, T.U. Grafe, M. Torres-Sánchez, D.S. McLeod & C.R. Muletz-Wolz 2021. Early life skin microbial trajectory as a function of vertical and environmental transmission in Bornean foam-nesting frogs. Animal Microbiome 3: 83.

Schoen,, S.N., D.S. McLeod, A. Golden, P. Carrington, J. Lasky, B. Sweet, M. Taylor,  J. Tony, M.A. Ward,, K. Williams,  U. Zainalabidin, and T.U. Grafe 2021. Early calling in the presence of eavesdroppers: the case of frog-biting midges (Diptera: Corethrellidae) and the rough-sided frog (Anura: Pulchrana glandulosa). Herpetological Review 52: 260-265.

Yi, J.D., A. Cobo-Cuan, R.Márquez, J.A. Sheridan, T.U. Grafe, A. Farina, and P.M. Narins 2021. Acoustic Snapshot of a Sarawak Forest. Journal of Ecoacoustics 5:1. doi:10.35995/jea5010001

Das, I., H. Hazebroek & U. Grafe 2021. Leptomantis fasciatus (Boulenger, 1895) as a possible nuptial gift offered by a male Raffles’s Malkoha, Rhinortha chlorophaea (Raffles, 1822). Herpetology Notes 14: 713-716.

Cicuzza, D., T.U. Grafe, N.H. Zaini, M.A. Ruslan & S.B. Yu. 2020. A new record of the fern Syngramma quinata in Brunei Darussalam. Scientia Bruneiana. 19(2): 1-5.

Cobo-Cuan, A., T.U. Grafe & P.M. Narins 2020. Beyond the limits: identifying the high-frequency detectors in the anuran ear. Biology Letters 16: 20200343.

McLeod, D., J. Gumpf, B. Alavi, T.U. Grafe, P. Yambun & O.J. Hyman 2020. Detection of Batrachochytrium dendrobatidis but not B. salamandrivorans in frog populations from Northern Borneo. Herpetological Review 51(2).

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Ahmad Sah, H.H. & T.U. Grafe 2020. Larval anuran assemblages in tropical rainforest streams in Borneo. Herpetological Conservation and Biology 15:105-117.

Schilthuizen et al. 2020. Craspedotropis gretathunbergae, a new species of Cyclophoridae (Gastropoda: Caenogastropoda), discovered and described on a field course to Kuala Belalong rainforest, Brunei. Biodiversity Data Journal 8: e47484.

Ahmad Sah, H.H. & T. U. Grafe 2019. Amphibian species diversity in the proposed extension of the Bukit Teraja Protection Forest, Brunei Darussalam. Scientia Bruneiana  18:11-23.

Scharmann, M., T.U. Grafe, F. Metali, & A. Widmer 2019. Sex is determined by XY chromosomes across the radiation of dioecious Nepenthes pitcher plants. Evolution Letters Evolution Letters 3-6: 586–597.

Ahmad Sah, H.H., T. Barthelmess, & T. U. Grafe 2019. Feeding ecology of a tropical litter-dwelling frog, Chaperina fusca (Microhylidae) from Borneo. Journal of Herpetology 53:237-244.
Virgo, J., A. Ruppert, K.P. Lampert, T.U. Grafe, & T. Eltz 2019. The sound of a blood meal: Acoustic ecology of frogbiting midges (Corethrella) in lowland Pacific Costa Rica. Ethology 125:465-475.
Das et al 2019

Das, I., Y.M. Pui, S.-T. Pang, T. bin Wahab, S. Mokhtar, S.T. Hertwig, A. Haas & U. Grafe 2019. Amphibians of Western Sarawak (Borneo). Lee Ming Press Sdn Bhd, Kuching, Malaysia.

Schilthuizen, M., A.E.A. Berenyi, A. Limin, A. Brahim, D. Cicuzza, A.J. Eales, P. Escoubas, U. Grafe, Groot, W.C. Hayden, M. Paterno, R. Jambul, J.W. F. Slik, D.T. T. Wah, A. Tucker, & I. Njunjić 2019. A new species of Clavicornaltica (Coleoptera: Chrysomelidae), discovered and described on a field course to Kuala Belalong, Brunei. Biodiversity Data Journal 7: e3255.

Baker, K., C. Damken, J.‑L. Gattolliat, U. Grafe, R. Kahar, A. Orr, M. Sartori, R.A. Wahab, · H. Zettel, & M.A. Chadwick 2019. Carpooling with ecologists, geographers and taxonomists: perceptions from conducting environmental research in tropical regions. Biodiversity and Conservation 28:975-981.

Goyes Vallejos, J., T.U. Grafe & K.D. Wells 2019. Factors influencing tadpole deposition site choice in a frog with male parental care: An experimental field study. Ethology 125:29–39.

Grafe, T.U., H.H. Ahmadsah, N. Ahmad, A. Borkent, I. Meuche & O. Konopik 2019. Studying the sensory ecology of frog‐biting midges (Corethrellidae: Diptera) and their frog hosts using ecological interaction networks. Journal of Zoology 307: 17–27.

Goyes Vallejos, J., T.U. Grafe & K.D. Wells 2018. Prolonged parental behaviour by males of Limnonectes palavanensis (Boulenger 1894), a frog with possible sex-role reversal. Journal of Natural History 52: 2473-2485.

Murrell, T., P.J. Bishop, R.A. Wahab & T.U. Grafe 2018. Lowland rainforest bat communities of Ulu Temburong National Park with two new records for Brunei Darussalam. Scientia Bruneiana 17(1):1-5.

Polgar G., T.U. Grafe, H.Y.K Pang, A. Brahim, D. Cicuzza & J.W.F. Slik. 2018. The Universiti Brunei Darussalam biological collections: history, present assets, and future development. Raffles Bulletin of Zoology 66: 320–336.

Das, I., Y.M. Pui, S.-T. Pang, T. bin Wahab, S. Mokhtar, S.T. Hertwig, A. Haas & U. Grafe 2018. A Guide to the Amphibians of the Matang Range, Sarawak (Borneo). Lee Ming Press Sdn Bhd, Kuching, Malaysia.Matang Frog Race Cover 001

Khalid, S.S. & T.U. Grafe 2017. Effect of fragmentation of kerangas forest on small mammal community structure in Brunei Darussalam. Scientia Bruneiana 16(2): 23-33.

Grafe, T.U. & Joremy A. Tony 2017. Temporal variation in acoustic and visual signalling as a function of stream background noise in the Bornean foot-flagging frog, Staurois parvus. Journal of Ecoacoustics  1

Schöner, M.G., C.R. Schöner, R.Ermisch, S.J. Puechmaille, T.U. Grafe, M.C. Tan & G. Kerth 2017. Stabilization of a bat-pitcher plant mutualism. Scientific Reports 7:13170.

Schöner, M.G., C.R. Schöner, G. Kerth, S.N. Suhaini & T.U. Grafe 2017. Handle with care: enlarged pads improve the ability of Hardwicke’s woolly bat, Kerivoula hardwickii (Chiroptera: Vespertilionidae), to roost in a carnivorous pitcher plant. Biological Journal of the Linnean Society 122:643-650.

Inger, R.F., Rbook front cover.B. Stuebing, T.U. Grafe & J.M. Dehling 2017. A Field Guide to the Frogs of Borneo. 3rd Edition. Natural History Publications (Borneo). Kota Kinabalu.

Goyes Vallejos, J., T.U. Grafe, H.H. Ahmad Sah & K.D. Wells 2017. Calling behavior of males and females of a Bornean frog with male parental care and possible sex-role reversal. Behavioral Ecology and Sociobiology 71:95.

Das, I., Y.M. Pui, P.S. Tyan, T. bin Wahab, T.R. Martin, S.T. Hertwig, A. Haas & U. Grafe 2017. A Field Guide to the Amphibians of Gunung Gading National Park, Sarawak (Borneo). Lee Ming Press Sdn Bhd, Kuching, Malaysia.

Schöner, C.R., M.G. Schöner, T.U. Grafe, C.C. Clarke, L. Dombrowski, M.C. Tan & G. Kerth 2017. Ecological outsourcing: a pitcher plant benefits from transferring pre-digestion of prey to a bat mutualist. Journal of Ecology 105:400-411.

Goutte, S., H.H. Ahmad Sah & T.U. Grafe 2017. Environmental correlates of species richness and composition of riparian anuran communities in rainforests of north-western Borneo: a metacommunity perspective. Herpetological Journal 27: 25-32.

Schöner, M.G., C.R. Schöner, G. Kerth, L.J. Liaw, & T.U. Grafe 2016. Bats attend to plant structures to identify roosting sites. Acta Chiropterologica 18: 433-440.

Masmin, H.H., K. Collier, P. Sarajuddin & T.U. Grafe 2016. Bat diversity in two lowland forests of Brunei Darussalam. Scientia Bruneiana 15: 75-83.

Das, I., P.Y. MLambir Hills Coverin, T. bin Wahab, J. Kulis, H. Kiprawi, M. Balton, H. Sidik, A. Suing, B.Jalin, T. Bakar, M.F. Abdul Rashid, S. Hertwig, A. Haas & U. Grafe 2016. A Field Guide to the Amphibians of Lambir Hills National Park, Sarawak (Borneo). Lee Ming Press Sdn Bhd, Kuching, Malaysia.

Ahmad Sah, H.H., T. U. Grafe, A. Dornburg, D. S. McLeod, A.M. Bauer, R. Abdul Wahab, L. Grismer, & G.J. Watkins-Colwell 2016. The Amphibians, Reptiles and Fishes of the 2012 Bukit Pagon Expedition, Brunei Darussalam. Bulletin of the Peabody Museum of Natural History 57:97-114.

Meuche, I., A. Keller, H.H. Ahmadsah, N. Ahmad & T.U. Grafe 2016. Silent listeners: Can acoustic preferences of blood-sucking eavesdroppers (Diptera: Corethrellidae) predict the parasitism risk of their anuran hosts? Behavioral Ecology 27:995-1003.

Sickel W., T.U. Grafe, I. Meuche, I. Steffan-Dewenter & A. Keller 2016. Diet determines bacterial diversity and community structure in Bornean pitcher plants. Microbial Ecology 71:938-953.

Bauer, U., K. Rembold & T. U. Grafe 2016. Carnivorous Nepenthes pitcher plants are a rich food source for a diverse vertebrate community. Journal of Natural History 50: 483-495.

Konopik, O., I. StCurrent Biology Covereffan-Dewenter & T.U. Grafe 2015. Effects of logging and oil palm expansion on stream frog communities on Borneo, Southeast Asia. Biotropica 47:636-643. Editor’s Choice 47(5).

Schöner, M.G, C.R. Schöner, R. Simon, T.U. Grafe, S. Puechmaille, LJ. Liaw & G. Kerth 2015. Bats are acoustically attracted to mutualistic carnivorous plants. Current Biology 25:1911-1916. (Highlighted as cover of journal)

Bauer, U., W. Federle, H. Seidel, T.U. Grafe & C.C. Ioannou 2015. How to catch more prey with less effective traps: explaining the evolution of temporarily inactive traps in carnivorous pitcher plants. Proceedings of the Royal Society of London B 282:20142675.

Lim, Y.S., C.R. Schöner, M.G. Schöner, G. Kerth, D.G. Thornham, M. Scharmann, & T.U. Grafe 2014. How a pitcher plant facilitates roosting of mutualistic woolly bats. Evolutionary Ecology Research 16:581-591.

Konopik, O., C. Gray,  T.U. Grafe, I. Steffan-Dewenter & T.M. Fayle 2014. From rainforest to oil palm plantations: Shifts in predator population and prey communities, but resistant interactions. Global Ecology and Conservation 2:385-394.

Grafe, T.U. & I. Das 2014. Conservation Status of the Amphibians of Brunei Darussalam. In: Conservation Biology of Amphibians of Asia. Status of Conservation and Decline of Amphibians: Eastern Hemisphere (Eds. Heatwole, H. & I. Das). pp 300-309. Natural History Publications (Borneo). Kota Kinabalu.

Konopik, O., K.E. Linsenmair & T.U. Grafe 2014. Road construction enables establishment of a novel predator category to resident anuran community: a case study from a primary lowland Bornean rain forest. Journal of Tropical Ecology 30:13-22.

Ecotropica Cover with N stenophylla Grafe, T.U. & R. J. Kohout 2013. A new case of ants nesting in Nepenthes pitcher plants. Ecotropica 19: 77-80 (Highlighted as cover of journal).

Endlein, T., W.J.P. Barnes, D.S. Samuel, N.A. Crawford, B.B. Ang & U. Grafe 2013. Sticking under wet conditions: the remarkable attachment abilities of the torrent frog, Staurois guttatus. Plos One 8(9) 273810.

Scharmann, M., D.G. Thornham, T.U. Grafe & W. Federle 2013. A novel type of nutritional ant-plant interaction: Ant partners of carnivorous pitcher plants prevent nutrient export by dipteran pitcher infauna. Plos One 8(5) e63556.

Scharmann, M. & T.U. Grafe 2013. Reinstatement of Nepenthes hemsleyana (Nepenthaceae), an endemic pitcher plant from Borneo, with a discussion of associated Nepenthes taxa. Blumea 58:8-12.

Schöner, C.R., M.G. Schöner, G. Kerth & T.U. Grafe 2013. Supply determines demand: multispecies interactions between bats and pitcher plants. Oecologia 173:191-202.

Grafe, T.U.,D.Preininger, M.Sztatecsny, R.Kasah, J.M.Dehling, S.Proksch & W.Hödl 2012. Multimodal communication in a noisy environment: A case study of the Bornean rock frog Staurois parvus PLOS One 7(5) e37965. doi:10.1371/journal.pone.0037965

Bauer, U., B. Di Giusto, J. Skepper, T.U. Grafe & W. Federle 2012. With the flick of a lid: a novel trapping mechanism in Nepenthes gracilis pitcher plants. PLOS One 7 (6) e38951.

Ernst, R., A. Keller, G. Landburg, T.U. Grafe, K.E. Linsenmair, M.-O. Rödel & F. Dziock 2012. Common ancestry or environmental trait filters: cross-continental comparisons of trait-habitat relationships in tropical anuran amphibian assemblages. Global Ecology and Biogeography 21: 704-715. (Highlighted as cover of journal).

Borkent, A. &  T.U.Grafe 2012. The frog-biting midges of Borneo – from two to eleven species (Corethrellidae: Diptera). Zootaxa 3279:1-45.

Thornham, D.G., J.M. Smith, T.U. Grafe & W. Federle 2012. Setting the trap: cleaning behaviour of Camponotus schmitzi ants increases long-term capture efficiency of their pitcher plant host, Nepenthes bicalcarata. Functional Ecology 26:11-19.

Grafe, T.U. 2011. Beyond taxonomy: radiotelemetry of the giant river frog Limnonectes leporinus in the Ulu Temburong National Park, Brunei Darussalam In: Biology and Conservation of Tropical Asian Amphibians (Ed.Das, I., A. Haas and A.A. Tuen). Institute of Biodiversity and Environmental Conservation, Universiti Malaysia Sarawak, Kota Samarahan.

Grafe, T.U., C.R. Schöner, G.Kerth, A. Junaidi & M.G. Schöner 2011. A novel resource-service mutualism between bats and pitcher plants. Biology Letters 7: 436-439. doi: 10.1098/rsbl.2010.1141

Bauer, U., T.U. Grafe & W. Federle 2011. Evidence for alternative trapping strategies in two forms of the pitcher plant, Nepenthes rafflesiana. Journal of Experimental Botany 62:3683-3692. (Highlighted as cover of journal).

Kaiser, K. &  T.U. Grafe 2011. Chytrid fungus not found in preliminary survey of lowland amphibian populations across northwestern Borneo. Herpetological Review 42: 59-61.

Grafe, T.U., M.M. Stewart, K. Lampert & M.O. Rödel 2011.  Putting toe clipping into perspective: a viable method for marking anurans. Journal of Herpetology 45:28-35.

Grafe, T.U., S. Goutte, H. H. Ahmadsah, O. Konopik, M. Scharman & U. Bauer 2010. Updated check list of the amphibians of the Ulu Temburong National Park and Brunei Darussalam. Scientia Bruneiana 11:53-59.

Arch, V.S., T.U. Grafe, M. Gridi-Papp & P.M. Narins 2009. Pure ultrasonic communication in an endemic Bornean frog. PLOS One 4(4): e5413. doi:10.1371/journal.pone.0005413. (Highlighted in Nature 459:12).

Grafe, T.U. & A. Keller 2009. A Bornean amphibian hotspot: the lowland mixed dipterocarp rainforest at Ulu Temburong National Park, Brunei Darussalam. Salamandra 45:25-38.

Keller, A., K.E. Linsenmair, M.O. Rödel & T.U. Grafe 2009. The importance of environmental heterogeneity for species diversity and assemblage structure in Bornean stream frogs. Journal of Animal Ecology 78:350-358 (Highlighted as cover of journal).

Meuche , I & T.U. Grafe 2009. Supplementary feeding affects the breeding behaviour of male European treefrogs (Hyla arborea). BMC Ecology 2009, 9:1-7.

Rödel, M.-O., J. Kosuch, T.U. Grafe, R. Boistel, N. E. Asseimian, N. G. Kouamé, B. Tohé, G. Gourène, J.-L. Perret, K. Henle, P. Tafforeau, N. Pollet & M. Veith 2009. A new tree-frog genus and species from Ivory Coast, West Africa (Amphibia: Anura: Hyperoliidae). Zootaxa 2044: 23-45.

Dehling, J.M. & T.U. Grafe 2008. A new treefrog of the genus Rhacophorus (Anura: Rhacophoridae) from Brunei Darussalam (Borneo). Salamandra 44:101-112.

Grafe, T.U. 2008. Toe waving in the brown marsh frog Rana baramica: pedal luring to attract prey? Scientia Bruneiana 9:3-5.

Grafe, T.U. H. Saat, N. Hagen, B. Kaluza, Z. Berudin & M.A. Wahab 2008. Acoustic localization of frog hosts by blood-sucking flies Corethrella Coquillet (Diptera: Corethrellidae) in Borneo. Australian Journal of Entomology 47: 350-354.

Keller, A., M. Siegle & T.U. Grafe. 2008. Geographic distribution: Parias sumatranus, Herpetological Review 39:373.

Keller, A., M. Siegle & T.U. Grafe. 2008. Geographic distribution: Xenodermus javanicus, Herpetological Review 39:374.

Arch, V.S., T.U. Grafe & P.M. Narins 2007. Ultrasonic signalling by a Bornean frog. Biology Letters 4:19-22.

Grafe, T.U. & T.C. Wanger 2007. Multimodal signaling in male and female foot-flagging frogs Staurois guttatus (Ranidae): an alerting function of calling. Ethology 113: 772-781.

Grafe, T.U. T.C. Wanger, J. M. Dehling, S. Proksch & T. Braasch 2006. Use of individual markings in the study of the foot-flagging frog, Staurois guttatus. Scientia Bruneiana 7:3-8.

Grafe, T.U. 2005. Anuran choruses as communication networks. In: Animal Communication Networks (Ed. P.K. McGregor). Cambridge, Cambridge University Press.

Grafe, T.U., S.K. Kaminsky & K.E. Linsenmair 2005. Terrestrial larval development and nitrogen excretion in the afro-tropical pig-nosed frog, Hemisus marmoratus. Journal of Tropical Ecology 21:219-222.

Grafe, T.U. & I. Meuche 2005. Estimate of chorus tenure and population size of male European treefrogs, Hyla arborea: implications for conservation. Amphibia-Reptilia 26:437-444.

Meuche, I. & T.U. Grafe 2005. Nummerierte Hautimplantate – eine alternative Markierungsmethode für den Laubfrosch (Hyla arborea)? Zeitschrift für Feldherpetologie S5:153-158.

Grafe, T.U & J.H. Bitz 2004a. Functions of duetting in the tropical boubou, Laniarius aethiopicus: territorial defense and mutual mate guarding. Animal Behavior 68: 193-201.

Grafe, T.U. & J.H. Bitz 2004b. An acoustic postconflict display in the tropical boubou (Laniarius aethiopicus): a signal of victory? BMC Ecology 4:1

Grafe, T.U., J.H. Bitz & M. Wink 2004. Song repertoire and duetting behaviour of the tropical boubou, Laniarius aethiopicus. Animal Behavior 68:181-191.

Grafe, T.U., S.K. Kaminsky, H. Lüssow, J.H. Bitz & K.E. Linsenmair 2004. Demographic dynamics of the afro-tropical pig-nosed frog, Hemisus marmoratus: effects of climate and predation on survival and recruitment. Oecologia 141:40-46.

Kaminsky, S.K., T.U. Grafe, M. Spieler & K.E. Linsenmair 2004. A new method for immobilizing fossorial frogs after radio-transmitter implantation and notes on movement patterns in the pig-nosed frog, Hemisus marmoratus. Herpetological Review 35:146-148.

Rheindt, F.E, T.U. Grafe & E. Abouheif 2004. Rapidly evolving traits and the comparative method: How important is testing for phylogenetic signal? Evolutionary Ecology Research 6: 377-396.

Glos, J., T.U. Grafe, M.-O. Rödel, & K.E. Linsenmair 2003. Geographic variation in pH tolerance of two populations of the European common frog Rana temporaria. Copeia 2003: 650-656.

Grafe, T.U. 2003. Synchronised interdigitated calling in the Kuvangu running frog (Kassina kuvangensis). Animal Behavior 66:127-136.

Grafe, T.U., S. Döbler & K.E. Linsenmair 2002. Frogs flee from the sound of fire. Proceedings of the Royal Society of London B 269:999-1003.

Rheindt, F.E., T.U. Grafe & K.E. Linsenmair 2002. New bird records in Comoé National Park, Ivory Coast. Malimbus 24:38-40.

Rödel, M.-O., T.U. Grafe, V.H.W. Rudolf & R. Ernst 2002. Revision of West African spotted Kassina frogs, including the description of Kassina schioetzi sp. nov. (Amphibia: Anura: Hyperoliidae). Copeia 2002:800-814.

Grafe, T.U. & J. Thein 2001. Energetics of calling and metabolic substrate use during prolonged exercise in the European treefrog Hyla arborea. J. Comp. Physiol. B 171: 69-76.

Grafe, T.U. 2000. Leptopelis viridis (West African tree frog). Cocoon formation. Herpetological Review 31:100-101.

Grafe, T.U., J.O. Steffen & C. Stoll 2000. Vocal repertoire and the effect of advertisement call intensity on calling behaviour in the West African tree frog Leptopelis viridis. Amphibia-Reptilia 21: 13-23.

Grafe, T.U. 1999. A function of synchronous calling and a novel female preference shift in an anuran. Proceedings of the Royal Society of London B 266:2331-2336.

Grafe, T.U., M. Spieler & B. König 1999. Erklärungsmodelle der Soziobiologie für Verhalten von Amphibien und Reptilien. Zeitschrift für Feldherpetologie 6:1-42.

Kaminsky, S.K., K.E. Linsenmair & T.U. Grafe 1999. Reproductive timing, nest construction and tadpole guidance in the African pig-nosed frog, Hemisus marmoratus. Journal of Herpetology 33:119-123.

Salewski, V. & T.U. Grafe 1999. New tape recordings of three West African birds. Malimbus 21:117-121.

Grafe, T.U. 1997. Costs and benefits of female choice in the lek-breeding African reed frog (Hyperolius marmoratus). Animal Behavior 53: 1103-1117.

Grafe, U. 1997. Use of metabolic substrates in the gray treefrog Hyla versicolor: implications for calling behavior. Copeia 1997: 356-362.

Grafe, T.U. 1996a. Energetics of vocalization in the African reed frog (Hyperolius marmoratus). Comparative Biochemistry Physiology 114A: 235-245.

Grafe, T.U. 1996b. The function of call alternation in the African reed frog (Hyperolius marmoratus): precise call-timing prevents auditory masking. Behav. Ecol. Sociobiol. 38:149-158.

Grafe, T.U. 1995. Graded vocalizations in the African painted reed frog Hyperolius mamoratus. Ethology 101:67-81.

Grafe, T.U., R. Schmuck & K. E. Linsenmair 1992. Reproductive energetics of the African reed frogs, Hyperolius viridiflavus and H. marmoratus. Physiological Zoology 61:153-171.

Mueller, U.G., A.F. Warneke, T.U. Grafe & P.R. Ode 1992. Female size and competitive ability in the philanthine wasp Cerceris fumipennis (Hymenoptera: Specidae). J. Kans. Entomol. Soc., 65(1):44-52.

Almeida, C.G. de, T.U. Grafe, M. Guttenbach & M. Schmid 1990. Karyotype and chromosome banding in the reed frog Hyperolius viridiflavus ommatostictus (Amphibia, Anura, Hyperoliidae). Experientia 46:509-511.

Grafe, T.U. & K.E. Linsenmair 1989. Protogynous sex change in the reed frog Hyperolius viridiflavus. Copeia 1989:1024-1029.