%0 Journal Article %A S. Bak %T The existence of heteroclinic travelling waves in the discrete sine-Gordon equation with nonlinear interaction on a $\mathrm{2D}$-lattice %J Žurnal matematičeskoj fiziki, analiza, geometrii %D 2018 %P 16-26 %V 14 %N 1 %U http://geodesic.mathdoc.fr/item/JMAG_2018_14_1_a1/ %G en %F JMAG_2018_14_1_a1