@article{DAN_1977_236_3_a19,
     author = {P. A. Sandomirskii and G. P. Klientova and M. A. Simonov and N. V. Belov},
     title = {Crystal structure of},
     journal = {Doklady Akademii Nauk},
     pages = {597--600},
     year = {1977},
     volume = {236},
     number = {3},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1977_236_3_a19/}
}