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2. K. Moedritzer,J. Inorg. Nucl. Chem., 22, 19 (1961).
3. P. P. Winkler and P. Peringer, to be published.
4. P. P. Winkler and P. Peringer,Inorg. Chim. Acta, in press.
5. Phosphito-silver compounds are reviewed inGmelin Handbuch der Anorganischen Chemie, Silber, part B4, p 38f, Springer, Berlin-New York, 1974.