1. Fonnum, F., Ed., 1978. Amino Acids as Chemical Transmitters, Plenum Press, New York.
2. Usherwood, P. N. R., 1978. Advances in Comp. Physiol. and Biochem. 1: 227?309.
3. Johnson, J. L., 1978. Prog. in Neurobiol. 10: 155?202.
4. Roberts, P. J., Storm-Mathisen, J. & Johnston, G., Eds., 1980. Glutamate as a Transmitter, John Wiley Press, New York.
5. DiChiara, G. & Gessa, G. L., Eds., 1980. Glutamate as a Neurotransmitter, Raven Press, New York.