@book {149, title = {The Amphibians of the Former Soviet Union}, year = {1999}, publisher = {Pensoft}, organization = {Pensoft}, address = {Moscow}, author = {Kuzmin, S.L.} } @book {175, title = {The Amphibians of the Russian Far East}, year = {2003}, publisher = {Pensoft}, organization = {Pensoft}, address = {Moscow}, author = {Kuzmin, S.L. and Maslova, I.V.} }