TY  - BOOK
AU  - Gwinner, Eberhard
TI  - Zoophysiology volume 18: circannual rhythms 
SN  - 3540168915
U1  - K:3 
PY  - 1986///
CY  - New Work
PB  - Springer- Verlag Berlin Heidelberg
KW  - 73 figures
ER  -