%0 Journal Article %A D. P. Kostomarov %T Solution of the Cauchy Problem for an Ultrahyperbolic Equation of Dimension 3 by 2 and 2 by 2 %J Differencialʹnye uravneniâ %D 2003 %P 393-401 %V 39 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_2003_39_3_a12/ %G ru %F DE_2003_39_3_a12