TY - JOUR AU - G. N. Kuznetsov AU - A. N. Stepanov TI - Laws of weakening infrasonic signals from the directed sources in the shallow sea JO - Dalʹnevostočnyj matematičeskij žurnal PY - 2013 SP - 61 EP - 71 VL - 13 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DVMG_2013_13_1_a5/ LA - ru ID - DVMG_2013_13_1_a5 ER -