@inbook{inbookc7ed20d9,
title   = {Torsion units in group rings and a conjecture of H.J. Zassenhaus},
author = {Polcino Milies, Francisco César},
year = {1986},
doi = {10.1016/S0304-0208(08)71521-4},
publisher = {Elsevier},
journal   = {Group and semigroup rings}
}