%0 Journal Article %A N. A. Tikhonov %T Travelling waves in a nonlinear medium and the determination from them of properties of the medium %J Žurnal vyčislitelʹnoj matematiki i matematičeskoj fiziki %D 1971 %P 144-151 %V 11 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZVMMF_1971_11_1_a14/ %G ru %F ZVMMF_1971_11_1_a14