%0 Journal Article %A M. A. Simonov %A Yu. K. Egorov-Tismenko %A N. V. Belov %T On crystal structures of ortho-phosphates of the composition %J Doklady Akademii Nauk %D 1978 %P 1101-1102 %V 239 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1978_239_5_a21/ %G ru %F DAN_1978_239_5_a21