1. Ahlquist, R. P. 1948. A study of adrenotropic receptors. Am. J. Physiol., 153. 586–599.
2. Baer, H. P., and Muller, M. J. 1983. Adenosine receptors in smooth muscle. In: Regulatory Functions of Adenosine p. 500. Ed. by Berne, R. M., Rail, T. W., and Rubio, R. Martinus Nijhoff, Boston.
3. Banks, B. E. C., Brown, C., Burgess, G. M., Burnstock, G., Claret, M., Cocks, T., Jenkinson, D.H., and Parson, H. 1979. Some peripheral activities of apamin, Toxic on, 17 (Suppl. 1): 4.
4. Berne, R. M., Rail, T. W., and Rubio, R. (eds.). 1983. Regulatory Functions of Adenosine. Martinus Nijhoff, Boston.
5. Boeynaems, J. M., and Dumont, J. E. (eds) 1980. Outlines of Receptor Theory. Elsevier, Amsterdam.