@phdthesis{Jungfer2015, author = {Karl-Heinz Jungfer}, title = {Taxonomy and Systematics of Spiny-Backed Treefrogs, Genus Osteocephalus (Amphibia: Anura: Hylidae)}, type = {doctoralthesis}, school = {Universit{\"a}t Koblenz, Universit{\"a}tsbibliothek}, year = {2015}, }