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  Author Title Year Publication Serial Volume (up) Pages Links
Clement, T.S.; Feltus, J.R.; Kaiser, D.H.; Zentall, T.R. “Work ethic” in pigeons: reward value is directly related to the effort or time required to obtain the reward 2000 Psychonomic bulletin & review 248 7 100-106 details   openurl
Beran, M.J. Long-term retention of the differential values of Arabic numerals by chimpanzees (Pan troglodytes) 2004 Animal Cognition 2533 7 86-92 details   doi
Lewis, K.P.; Jaffe, S.; Brannon, E.M. Analog number representations in mongoose lemurs (Eulemur mongoz): evidence from a search task 2005 Animal Cognition 2497 8 247-252 details   doi
Hinson, R.E. Effects of UCS preexposure on excitatory and inhibitory rabbit eyelid conditioning: an associative effect of conditioned contextual stimuli 1982 Journal of Experimental Psychology. Animal Behavior Processes 2787 8 49-61 details   openurl
Nevin, J.A.; Shettleworth, S.J. An analysis of contrast effects in multiple schedules 1966 Journal of the experimental analysis of behavior 392 9 305-315 details   doi
Grubb, T.L.; Foreman, J.H.; Benson, G.J.; Thurmon, J.C.; Tranquilli, W.J.; Constable, P.D.; Olson, W.O.; Davis, L.E. Hemodynamic effects of calcium gluconate administered to conscious horses 1996 Journal of veterinary internal medicine / American College of Veterinary Internal Medicine 97 10 401-404 details   openurl
Clement, T.S.; Zentall, T.R. Choice based on exclusion in pigeons 2003 Psychonomic bulletin & review 233 10 959-964 details   openurl
Huebener, E. The Rider's Impacts and Their Timers – Example: Rider's Aids for Transitions Between Different Gaits. 2006 Tierärztliche Umschau 434 10 515-532 details   url
Huebener, E. Einwirkungen des Reiters nach Zeitgeber ? Beispiel: Hilfen für Übergänge von einer Gangart in eine andere; 2006 Tierärztliche Umschau 425 10 515-532 details   url
Petruso, E.J.; Fuchs, T.; Bingman, V.P. Time-space learning in homing pigeons (Columba livia): orientation to an artificial light source 2007 Animal Cognition 2432 10 181-188 details   doi
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