pH-metric study of the complexation equilibria of alkaline-earth cations with [1]- and [2]- cryptands in methanolF. Arnaud-Neu, R. Yahya and M.J. Schwing-WeillJ. Chim. Phys., 83 (1986) 403-408DOI: https://doi.org/10.1051/jcp/1986830403