%0 Journal Article %A V. E. Zakharov %T Exact solutions to the problem of the parametric interaction of three- dimensional wave packets %J Doklady Akademii Nauk %D 1976 %P 1314-1316 %V 228 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1976_228_6_a13/ %G ru %F DAN_1976_228_6_a13