@article{AL_1971_10_4_a8,
     author = {A. I. Cheremisin},
     title = {Letter to the editors},
     journal = {Algebra i logika},
     pages = {480},
     year = {1971},
     volume = {10},
     number = {4},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AL_1971_10_4_a8/}
}