%0 Journal Article %A V. G. Rau %A V. V. Ilyukhin %A N. V. Belov %T Isovector structures of pseudo symmetric crystals. Theory of isovector structures. Distance groups and isovector structures %J Doklady Akademii Nauk %D 1979 %P 611-613 %V 249 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1979_249_3_a22/ %G ru %F DAN_1979_249_3_a22