@article{AL_2020_59_3_a6,
     author = {V. A. Roman'kov and E. I. Timoshenko},
     title = {Verbally closed subgroups of free solvable groups},
     journal = {Algebra i logika},
     pages = {367--384},
     year = {2020},
     volume = {59},
     number = {3},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AL_2020_59_3_a6/}
}