@article{AL_2001_40_2_a4,
     author = {V. A. Roman'kov},
     title = {Test {Elements} for {Free} {Solvable} {Groups} of {Rank~2}},
     journal = {Algebra i logika},
     pages = {192--201},
     publisher = {mathdoc},
     volume = {40},
     number = {2},
     year = {2001},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AL_2001_40_2_a4/}
}