TY - JOUR AU - Yu. K. Engelbrecht TI - On the problem of description of nonlinear waves in an active medium JO - Doklady Akademii Nauk PY - 1984 SP - 591 EP - 594 VL - 278 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1984_278_3_a19/ LA - ru ID - DAN_1984_278_3_a19 ER -