Two peculiar North American frogs Pseudacris crucifer and Pseudacris cadaverina Part 2 In California To egenartede nordamerikanske lovfroer, Pseudacris crucifer og Pseudacris cadaverina 2 del I Californien. Nordisk Herpetologisk Forening. September-Oktober; 395: 105-114, 1996
A new character in taxonomy of of the genus Ornithogalum L. (Liliaceae). Botanicheskii zhurnal 62(6): 883-885, 1977
Two peculiar North American frogs Pseudacris crucifer and Pseudacris cadaverina Part 1 In New Jersey To egenartede nordamerikanske lovfroer, Pseudacris crucifer og Pseudacris cadaverina 1 del I New Jersey. Nordisk Herpetologisk Forening. Juli-August; 394: 90-96, 1996
Physiological and biochemical contributions to the taxonomy of the genus Chlorella. I. Resistance to acid as a taxonomic character. Arch Mikrobiol 52(4): 291-296, 1965
Physiological and biochemical contributions to the taxonomy of the genus Chlorella. IX. Salt tolerance as a taxonomic character. Archives of Microbiology 100(1): 51-56, 1974
Physiological and biochemical contributions to the taxonomy of the genus Chlorella. I. Acid resistance as a taxonomic character. Archiv für Mikrobiologie 52(4): 291-296, 1965
Palynological contribution to the taxonomy of Spanish species of the genus Seseli L. (Umbelliferae) Structure as taxonomic character.1. Monographs in systematic botany from the Missouri Botanical Garden(6): 243-253, 1982
Pseudacris streckeri taxonomy distribution. Catalogue of American Amphibians and Reptiles 27: 27, 1966
The taxonomy and calling songs of United States tree crickets (Orthoptera: Gryllidae: Oecanthinae). I. The genus Neoxabea and the niveus and varicornis groups of the genus Oecanthus. Annals of the Entomological Society of America 55: 303-322, 1962
Phylogenetic relationships, taxonomy, character evolution and biogeography of the lacertid lizards of the genus Takydromus (Reptilia: Squamata): A molecular perspective. Biological Journal of the Linnean Society 76(4): 493-509, 2002
Speciation in Chorus Frogs. I. Reproductive Character Displacement in the Pseudacris nigrita Complex. Systematic Zoology 24(1): 16-23, 1975
Speciation in chorus frogs. l. Reproductive character displacement in the Pseudacris nigrita complex. Systematic Zoology 241: 16-23, 1975
Speciation in Chorus Frogs. I. Reproductive Character Displacement in the Pseudacris Nigrita Complex. Systematic Biology 24(1): 16-23, 1975
Taxonomy of the neotropical hylidae hyla nyetimystes acris pseudacris bamboo m. Pearce-Sellards Series Texas Memorial Museum (11): 5-26, 1968
Secondary sexual character of the species of the genus Carphoborus Eichhoff and taxonomy of the species. Acta entomologica bohemoslovaca 2(6): 468-475, 1985