1. Békésy, G. v.: Experiments in hearing, edit. by E. G. Wever, New York: McGraw-Hill Book Co. 1960.
2. Békésy, G. v.: Experiments in hearing, edit. by E. G. Wever, p. 99–100. New York: McGraw-Hill Book Co. 1960.
3. Békésy, G. v.: Experiments in hearing, edit. by E. G. Wever, p. 447–464. New York: McGraw-Hill Book Co. 1960.
4. Békésy, G. v.: Experiments in hearing, edit. by E. G. Wever, p. 447–448. New York: McGraw-Hill Book Co. 1960.
5. Békésy, G. v.: Experiments in hearing, edit. by E. G. Wever, p. 442, 500–508. New York: McGraw-Hill Book Co. 1960.