1. B. Katz, The Release of Neural Transmitter Substances, in The Sherrington Lectures X, Vol. 10, Liverpool Univ. Press, Liverpool, (1969).
2. J. Del Castillo and B. Katz, J. Physiol. (London), 128, 396 (1955).
3. D. Pette and G. Vrbova, Muscle Nerve, 8, 676 (1985).
4. T. Lömo and K. Gundersen, in Nerve-Muscle Cell Trophic Communications H.L. Fernandzez (Editor), Crc Press, Boca Raton, (1988), p.61.
5. S. Thesleff, J. Physiol. (London), 151, 598 (1960).