@article{VMUMM_2007_3_a3,
     author = {V. V. Kochergin},
     title = {The maximal complexity of calculations of systems of elements of a free {Abelian} group},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {14--19},
     publisher = {mathdoc},
     number = {3},
     year = {2007},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_2007_3_a3/}
}