@article{VTGU_2012_1_a6,
     author = {A. R. Chekhlov},
     title = {E-engelian abelian groups of step~$\le2$},
     journal = {Vestnik Tomskogo gosudarstvennogo universiteta. Matematika i mehanika},
     pages = {54--60},
     year = {2012},
     number = {1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VTGU_2012_1_a6/}
}