1. Hydén, H., 1959, Nature 184: 433–435.
2. Sellinger, O. Z., and Azcurra, J. M., 1974, Research Methods in Neurochemistry. Volume 2 (N. Marks and R. Rodnight, eds.), Plenum Press. New York, pp. 3–38.
3. Hamberger, A., Hansson, H. A.. and Sellström, A., 1975, Exp. Cell Res. 92: 1–10.
4. Nagata, Y., and Tsukada, Y., 1978, Reviews of Neuroscience, Vol. 3 (S. Ehrenpreis and I. Kopin, eds.), Raven Press, New York. pp. 195–22I.
5. Farooq, M., and Norton. W. T.. 1978, J. Neurochem. 31: 887–894.