@article{SM_1988_61_1_a3,
     author = {Yu. V. Kuz'min},
     title = {On the differentials in the spectral sequence of a~group extension},
     journal = {Sbornik. Mathematics},
     pages = {49--63},
     publisher = {mathdoc},
     volume = {61},
     number = {1},
     year = {1988},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1988_61_1_a3/}
}