@article{VTGU_2009_2_a10,
     author = {A. R. Chekhlov},
     title = {On properties of centrally invariant and commutatorically invariant subgroups of abelian groups},
     journal = {Vestnik Tomskogo gosudarstvennogo universiteta. Matematika i mehanika},
     pages = {85--99},
     year = {2009},
     number = {2},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VTGU_2009_2_a10/}
}