@article{AL_1994_33_1_a4,
     author = {V. D. Mazurov},
     title = {On the set of orders of elements of a finite group},
     journal = {Algebra i logika},
     pages = {81--89},
     publisher = {mathdoc},
     volume = {33},
     number = {1},
     year = {1994},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AL_1994_33_1_a4/}
}