1. F. NYFFELER, A. WYTTENBACH, P. RUCH, J. M. JAQUET, K. HANSELMANN, The Swiss Oceanographic Program PROSPER, Tech. Report 84-36.
2. M. L. PETERSON, A. WYTTENBACH, Swiss Federal Institute for Reactor Research Tech. Report TM-44-85-17, 1985, p. 33.
3. M. LYLE, R. HEATH, J. M. ROBBINS, Geochim. Cosmochim. Acta, 48 (1984) 1705.
4. J. M. ROBBINS, M. LYLE, G. R. HEATH, Corvallis, Oregon ST. Univ., Coll. Ocanog. Report, Ref. No. 84-3, 1984, p. 55.
5. L. TOBLER, A. WYTTENBACH, Swiss Federal Institute for Reactor Research Tech. Report TM-44-83-15, (1983), p. 23.