1. Bloom, F. E., Iversen, L. L.: Localizing 3H-GABA in nerve terminals of rat cerebral cortex by electron microscopic autoradiography. Nature (Lond.) 229, 628?630 (1971).
2. Curtis, D. R., Duggan, A. W., Felix, D., Johnston, G. A. R.: GABA, bicuculline and central inhibition. Nature (Lond.) 226, 1222?1224 (1970).
3. ? ?, Johnston, G. A. R.: The inactivation of extracellularly administered amino acids in the feline spinal cord. Exp. Brain. Res. 10, 447?462 (1970).
4. ?, Johnston, G. A. R.: Amino acid transmitters. In: Handbook of Neurochemistry. vol. 4, pp. 115?134. A. Lajtha, ed. New York: Plenum Press 1970.
5. Eugster, C. H.: Isolation, structure and syntheses of central-active compounds from Amanita muscaria (L. ex Fr.) Hooker. In: Ethnopharmacologic search for psychoactive drugs, pp. 416?418. D. H. Efron, B. Holmstedt, N. S. Kline, eds. Washington: U.S. Public Health Service publication no. 1645 (1967).