@article{AL_1964_3_1_a2,
     author = {L. A. Bokut'},
     title = {Letter to the editor},
     journal = {Algebra i logika},
     pages = {57},
     publisher = {mathdoc},
     volume = {3},
     number = {1},
     year = {1964},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AL_1964_3_1_a2/}
}