00287nam a2200109Ia 4500008004100000082001700041100002400058245002400082260004200106300001000148650001900158140113s9999    xx            000 0 und d  a581.132 K4.2  a" Giese, Arthur C."  aPhotophysiology v.2  b"New York : Academic Press Inc, 1964"  a441p.  aPhotoperiodism