%0 Journal Article %A N. Yu. Kapustin %A E. I. Moiseev %T On a spectral problem from the theory of the parabolic-hyperbolic %J Doklady Akademii Nauk %D 1997 %P 451-454 %V 352 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1997_352_4_a3/ %G ru %F DAN_1997_352_4_a3