@article{IVM_1972_10_a15,
     author = {T. V. Chekmarev},
     title = {Letter to the editors},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {99--101},
     publisher = {mathdoc},
     number = {10},
     year = {1972},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1972_10_a15/}
}