\Bibitem{TriTsv88} \by Yu.~Ya.~Trifonov, O.~Yu.~Tsvelodub \paper Branching of steady traveling-wave states of a viscous liquid film \jour Prikl. Mekh. Tekh. Fiz. \yr 1988 \vol 29 \issue 4 \pages 55--60 \mathnet{http://mi.mathnet.ru/pmtf4817} \transl \jour J. Appl. Mech. Tech. Phys. \yr 1988 \vol 29 \issue 4 \pages 507--511 \crossref{https://doi.org/10.1007/BF00852486}