1. Kruta, V., Arch. Int. Physiol., 45, 332 (1937).
2. Kruta, V., and Stejskalová, J., Arch. Int. Physiol. Biochem., 68, 152 (1960).
3. Whalen, W. J., Science, 127, 468 (1958). Speirs, R. L., Nature, 184, 66 (1959).
4. Bravený, P., and Kruta, V., Arch. Int. Physiol. Biochem., 66, 633 (1958).
5. Benforado, J. M., J. Pharm. and Exp. Therap., 122, 86 (1958).