TY - JOUR AU - O. A. Godin TI - Reciprocity relations for waves in a compressible fluid JO - Doklady Akademii Nauk PY - 1987 SP - 322 EP - 325 VL - 293 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1987_293_2_a13/ LA - ru ID - DAN_1987_293_2_a13 ER -