TY - JOUR AU - B. A. Kupershmidt AU - Yu. I. Manin TI - Long-wave equation with free boundaries. I. Conservation laws and solution JO - Funkcionalʹnyj analiz i ego priloženiâ PY - 1977 SP - 31 EP - 42 VL - 11 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/FAA_1977_11_3_a4/ LA - ru ID - FAA_1977_11_3_a4 ER -