BakS. N. “Existence of the Solitary Traveling Waves for a System of Nonlinearly Coupled oscillators on the 2d -Lattice”. Ukrains’kyi Matematychnyi Zhurnal 69, no. 4 (April 25, 2017): 435-444. Accessed May 17, 2021. http://umj.imath.kiev.ua/index.php/umj/article/view/1707.