@article{SM_1997_188_6_a1,
     author = {D. N. Ivanov},
     title = {$\mathscr H$-bijections of groups and $\mathscr H_R$-isomorphisms of group rings},
     journal = {Sbornik. Mathematics},
     pages = {823--841},
     publisher = {mathdoc},
     volume = {188},
     number = {6},
     year = {1997},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1997_188_6_a1/}
}