@article{PFMT_2011_3_a6,
     author = {D. P. Andreeva and A. N. Skiba},
     title = {Finite groups with given maximal chains of length $\le 3$},
     journal = {Problemy fiziki, matematiki i tehniki},
     pages = {39--49},
     publisher = {mathdoc},
     number = {3},
     year = {2011},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/PFMT_2011_3_a6/}
}