References
- Crawford, A. S. (1939) Method of ventricular puncture and studies in cerebral pneumography, Yale. J. Biol. & Med., 11, p. 473.
- Lindgren, E. (1949) Some aspects on the technique of encephalography.. Acta radiol., 31, p. 161.
- Parenti, G. C. (1941) Bemerkungen zur neurochirurgischen Technik.. Zentralbl. f. Neurochir., 6, p. 59.
- Rehwald, E. (1942) Enzephalographie mit Luft.. Med. Klin., 38, p. 1191.