TY - JOUR AU - D. O. Tsvetkov TI - Small motions of an ideal stratified fluid with a free surface completely covered with the elastic ice JO - Sibirskie èlektronnye matematičeskie izvestiâ PY - 2018 SP - 422 EP - 435 VL - 15 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/SEMR_2018_15_a89/ LA - ru ID - SEMR_2018_15_a89 ER -