Localized nonlinear strain waves in complex dispersive-dissipative solids - A. V. Porubov; G. A. Maugin; V. V. Gursky; V. V. Krzhizhanovskaya; D. V. Shevchenko (Proceedings of the XXXI International Conference "Advanced Problems in Mechanics", St. Petersburg, Russia, June 22-July 2, 2003, 2003)