@article{ZVMMF_1962_2_3_a20,
     author = {E. G. D'yakonov},
     title = {Letter to the editor},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {512},
     publisher = {mathdoc},
     volume = {2},
     number = {3},
     year = {1962},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_1962_2_3_a20/}
}