1. Early conditional reflexes in the child;Kasatkin,1952
2. (Reprinted in the Central Nervous System and Behavior, U.S. Dept. of Health, Education and Welfare, Public Health Service, Bethesda.)
3. Reflex secretion of the human parotid gland;Lashley;J. exp. Psychol.,1916
4. The work of the digestive glands;Pavlov,1910
5. Parotid secretory rate in manic-depressive patients;Strongin;Amer. J. Psychiat.,1938