\Bibitem{Gav88} \by N.~V.~Gavrilov \paper Viscous attenuation of solitary internal waves in a two-layer fluid \jour Prikl. Mekh. Tekh. Fiz. \yr 1988 \vol 29 \issue 4 \pages 51--55 \mathnet{http://mi.mathnet.ru/pmtf4816} \transl \jour J. Appl. Mech. Tech. Phys. \yr 1988 \vol 29 \issue 4 \pages 503--506 \crossref{https://doi.org/10.1007/BF00852485}