%0 Journal Article %A L. B. Mironova %T On characteristic problem for a system with double higher partial derivatives %J Journal of Samara State Technical University, Ser. Physical and Mathematical Sciences %D 2006 %P 31-37 %N 43 %I mathdoc %U http://geodesic.mathdoc.fr/item/VSGTU_2006_43_a5/ %G ru %F VSGTU_2006_43_a5