1. Amthauer, R.: I-S-T. Intelligenz-Struktur-Test, 2nd ed. Göttingen: Hogrefe 1955
2. Anastasi, A.: Differential psychology. New York: McMillan 1958
3. Andersen, P., Andersson, S. A.: Physiological basis of the Alpha-Rhythm. New York: Appleton-Century-Crofts 1968
4. Andersen, P., Andersson, S. A.: Thalamic origin of cortical rhythmic activity. Handbook of electroencephalography and clin. neurophysiology, Vol. 2, Part C, pp. 2C-90?2C-118. Amsterdam: Elsevier 1974
5. Berger, H.: Über das Elektrenkephalogramm. 1. Mitteilung. Arch. Psychol. (Frankf.) 87, 527 (1929)