\Bibitem{Vol66}
\by R.~T.~Vol'vachev
\paper Periodic nilpotent linear groups over the field of rational numbers
\jour Sb. Math.
\yr 1966
\vol 112
\issue 3
\mathnet{http://mi.mathnet.ru/eng/sm4230}
\mathscinet{http://mathscinet.ams.org/mathscinet-getitem?mr=197580}
\zmath{https://zbmath.org/?q=an:0154.02205}