1. W.C. Bowman and M.J. Rand: Textbook of pharmacology, 2nd ed., Blackwell Scientific Publications, London 1980, Ch. 22 and 23.
2. R.E. Thomas: In: M.E. Wolf (ed.): Burger’s medicinal chemistry, 4th ed., John Wiley and Sons, New York 1981, Part III, p. 47.
3. B.F. Hoffman and J.T. Bigger Jr.: In: A.G. Gilman, L.S. Goodman, T.W. Rall and F. Murad (eds.): Goodman and Gilman’s the pharmaceutical basis of therapeutics, 7th ed., Macmillan Publishing Company, New York 1985, p. 716;
4. J.T. Bigger, Jr. and B.F. Hoffman: In: (a), p. 748;
5. P. Rudd and T.F. Blaske: In: (a), p. 784;