@article{MZM_1972_11_2_a8,
     author = {I. I. Khripta},
     title = {Nilpotency of the multiplicative group of a group ring},
     journal = {Matemati\v{c}eskie zametki},
     pages = {191--200},
     publisher = {mathdoc},
     volume = {11},
     number = {2},
     year = {1972},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1972_11_2_a8/}
}