1. 1. F. d'Yvoire, Bull. Soc. Chim. Fr., 1224 (1962).
2. Synthesis and crystal structure of AlH2P3O10·2H2O; a new structure-type for layered acid phosphates
3. 3. P. Remy, A. Boulle, Bull. Soc. Chim. Fr., 2213 (1972).
4. 4. P. P. Mel'nikov, V. A. Efremov, A. K. Stepanov, T. S. Romanova, L. N. Komissarova, Russ. J. Inorg. Chem., 21, 26 (1976).
5. 5. V. A. Lyutsko, A. F. Selevich, Russ. J. Inorg. Chem., 28, 521 (1983).