References
- Pavlov I P. Physiology of digestion. Nobel Foundation, Stockholm 1904, Lecture oline, Available at: http://www.nobel.se/medicine/laureates/1904/pavlov-lecture.html
- Pavlov I P. The psychiatric writings of Ivan Petrovich Pavlov 1941, Translated into English by W. Horsley Gantt
- Encyclopaedia Britannica. Macropaedia 1975. Encyclopaedia Britannica, Chicago 1975; 13: 1095–1097