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Author (up) Title Year Publication Serial Volume Pages
Berger, A.; Scheibe, K.-M.; Eichhorn, K.; Scheibe, A.; Streich, J. Diurnal and ultradian rhythms of behaviour in a mare group of Przewalski horse (Equus ferus przewalskii), measured through one year under semi-reserve conditions 1999 Applied Animal Behaviour Science 2236 64 1-17
Scheibe, K.M.; Schleusner, T.; Berger, A.; Eichhorn, K.; Langbein, J.; Dal Zotto, L.; Streich, W.J. ETHOSYS (R)--new system for recording and analysis of behaviour of free-ranging domestic animals and wildlife 1998 Applied Animal Behaviour Science 2237 55 195-211