1. Waterman, T. H. (ed.): The Physiology of Crustacea, Vol. I. New York-London: Academic Press 1960.
2. Wieser, W.: Nature191, 1020 (1961).
3. Wieser, W., u.H. Makart: Z. Naturforsch.16b, 816 (1961).
4. Goodwin, T. W.: The Physiology of Crustacea, Vol. I. New York-London: Academic Press S. 127, 1960.
5. : J. Marine Biol. Assoc. United Kingdom45, 2 (1965).