1. Laughter: An essay on the meaning of the comic;Bergson,1911
2. Aggressive humor as a stimulus to aggressive responses;Berkowitz;Journal of Personality & Social Psychology,1970
3. Surgical aspects of the hypothalamus;Dott,1938
4. Laughter in epilepsy;Druckman;Neurology,1957
5. Enjoyment of laughter;Eastman,1936