@article{DAN_1978_243_3_a21, author = {O. S. Bondareva and Yu. K. Egorov-Tismenko and M. A. Simonov and N. V. Belov}, title = {Crystal structure of }, journal = {Doklady Akademii Nauk}, pages = {641--644}, publisher = {mathdoc}, volume = {243}, number = {3}, year = {1978}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1978_243_3_a21/} }