@article{MZM_1989_45_6_a2,
     author = {A. A. Bovdi and A. A. Sakach},
     title = {Unitary subgroup of the multiplicative group of a modular group algebra of a finite abelian $p$-group},
     journal = {Matemati\v{c}eskie zametki},
     pages = {23--29},
     publisher = {mathdoc},
     volume = {45},
     number = {6},
     year = {1989},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1989_45_6_a2/}
}