@article{DAN_1981_260_4_a26,
     author = {A. F. Palistrant},
     title = {Application of three-dimensional point groups of the $P$-symmetry to the derivation
},
     journal = {Doklady Akademii Nauk},
     pages = {884--888},
     publisher = {mathdoc},
     volume = {260},
     number = {4},
     year = {1981},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1981_260_4_a26/}
}