Wallraff, Hans Georg Verhaltensphysiologie, Seewiesen, Max Planck Institut für Ornithologie, Max Planck Society;
Schweiger, E., Schweiger, H. G., & Wallraff, H. G. (1964). Endogenous circadian rhythm in cytoplasm of acetabularia: Influence of the nucleus. Science, 146(3644), 658-659. doi:10.1126/science.146.3644.658.