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6 in total

1. [Definition and use of the terms "ultimate factor", "proximate factor" and "zeitgeber"].

Authors: Klaus Immelmann
Journal: Oecologia Date: 1972-09 Impact factor: 3.225

Authors: E Gwinner; J Dittami; H Gwinner
Journal: Oecologia Date: 1983-10 Impact factor: 3.225

Authors: Klaus Immelmann
Journal: Oecologia Date: 1969-09 Impact factor: 3.225

Authors: Liisa Schneider
Journal: Oecologia Date: 1969-08 Impact factor: 3.225

Authors: L Schneider; K Immelmann
Journal: Naturwissenschaften Date: 1969-02

Authors: P Berthold
Journal: Experientia Date: 1967-11-15

6 in total