TY  - JOUR
A1  - Helb, Hans-Wolfgang
A1  - Wallschläger, Hans-Dieter
T1  - Geographical variation of the song of the scarlet rosefinch Carpodacus erythrinus
Y1  - 1996
UR  - https://publishup.uni-potsdam.de/frontdoor/index/index/docId/25998
ER  -