1. Wullimann MF, Roth G: Problems in the study of brain evolution and cognition. In Brain, Evolution and Cognition. Edited by Wullimann MF, Roth G. New York: Wiley; 2001:1-7.
2. The cognitive architecture of a mini-brain: the honeybee;Menzel;Trends Cogn Sci,2001
3. von Frisch K: The Dance Language and Orientation of Bees. Boston MA: Harvard University Press; 1967.
4. Classical conditioned response in the honeybee;Takeda;J Insect Physiol,1961
5. Classical conditioning of proboscis extension in honeybees (Apis mellifera);Bitterman;J Comp Psychol,1983