@misc{AL_1969_8_4_a8,
     title = {Dmitri\u{\i} {Matveevi\v{c}} {Smirnov.} {On} his fiftieth birthday},
     journal = {Algebra i logika},
     pages = {493--496},
     publisher = {mathdoc},
     volume = {8},
     number = {4},
     year = {1969},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AL_1969_8_4_a8/}
}