TY - JOUR AU - U. K. Nigul TI - Asymptotic description of the process of weak distortion of the longitudinal-wave shape in a nonlinear hereditary elastic medium JO - Doklady Akademii Nauk PY - 1979 SP - 60 EP - 63 VL - 247 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1979_247_1_a13/ LA - ru ID - DAN_1979_247_1_a13 ER -