TY - JOUR AU - P. I. Plotnikov TI - Spatial potential flows with free boundary JO - Doklady Akademii Nauk PY - 1975 SP - 1287 EP - 1289 VL - 224 IS - 6 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1975_224_6_a12/ LA - ru ID - DAN_1975_224_6_a12 ER -