%0 Journal Article %A Z. I. Borevich %A E. V. Dybkova %T The index of net subgroups in the general and special linear groups over a~Dedekind ring %J Informatics and Automation %D 1978 %P 58-64 %V 148 %I mathdoc %U http://geodesic.mathdoc.fr/item/TRSPY_1978_148_a6/ %G ru %F TRSPY_1978_148_a6