TY - JOUR AU - E. V. Bogdanova TI - Free oscillations of a viscous incompressible fluid at the entrance to a pipe with an annular cross section of small curvature JO - Doklady Akademii Nauk PY - 1982 SP - 556 EP - 560 VL - 265 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1982_265_3_a11/ LA - ru ID - DAN_1982_265_3_a11 ER -