@article{MZM_2000_67_6_a6,
     author = {A. F. Grishin and S. V. Makarenko},
     title = {On a~theorem of {Yulmukhametov}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {859--862},
     publisher = {mathdoc},
     volume = {67},
     number = {6},
     year = {2000},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2000_67_6_a6/}
}