%0 Journal Article %A M. A. Osipenko %A A. A. Kasatkin %T A couple contact loading at the unilateral contact of beams %J Izvestiya of Saratov University. Mathematics. Mechanics. Informatics %D 2019 %P 69-81 %V 19 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/ISU_2019_19_1_a5/ %G ru %F ISU_2019_19_1_a5