%0 Journal Article %A A. A. Grinberg %A Yu. S. Varshavskii %T The acid properties of ammoniates and the deformation vibration frequencies of coordinated ammonia molecules %J Doklady Akademii Nauk %D 1964 %P 1072-1074 %V 159 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1964_159_5_a26/ %G ru %F DAN_1964_159_5_a26