@article{AL_1968_7_2_a4,
     author = {I. A. Lavrov},
     title = {Answer to a question of {P.} {R.} {Young}},
     journal = {Algebra i logika},
     pages = {48--54},
     publisher = {mathdoc},
     volume = {7},
     number = {2},
     year = {1968},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AL_1968_7_2_a4/}
}