%0 Journal Article %A A. V. Chichagov %A V. S. Kovalenko %A V. I. Ponomarev %A N. V. Belov %T Crystalline structure of %J Doklady Akademii Nauk %D 1969 %P 88-90 %V 189 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1969_189_1_a22/ %G ru %F DAN_1969_189_1_a22