Wild fish can recognize individual divers Publications of Jürgen Zulley All genres Journal Article (1) Journal Article (1) 1. Journal Article Zulley, J.; Wever, R.; Aschoff, J.: The dependence of onset and duration of sleep on the circadian-rhythm of rectal temperature. Pflügers Archiv: European Journal of Physiology 391 (4), pp. 314 - 318 (1981) MPG.PuRe DOI