@article{DAN_1986_288_3_a8,
     author = {V. T. Pliev},
     title = {Completeness of derived chains corresponding to half of the},
     journal = {Doklady Akademii Nauk},
     pages = {552--556},
     publisher = {mathdoc},
     volume = {288},
     number = {3},
     year = {1986},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1986_288_3_a8/}
}