%0 Journal Article %A G. N. Kuznetsov %A A. N. Stepanov %T Laws of weakening infrasonic signals from the directed sources in the shallow sea %J Dalʹnevostočnyj matematičeskij žurnal %D 2013 %P 61-71 %V 13 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DVMG_2013_13_1_a5/ %G ru %F DVMG_2013_13_1_a5