%0 Journal Article %A V. A. Gaidak %A E. A. Timoshenko %T Involutions of the general linear group $GL_2$ over a subring of the field~$\mathbb{Q}$ %J Vestnik Tomskogo gosudarstvennogo universiteta. Matematika i mehanika %D 2019 %P 19-26 %N 62 %I mathdoc %U http://geodesic.mathdoc.fr/item/VTGU_2019_62_a1/ %G ru %F VTGU_2019_62_a1