%0 Journal Article %A N. B. Pleschinskii %T The equivalence of a problem of Gellerstedt type to the Riemann problem for a system of functions %J Trudy seminara po kraevym zadačam %D 1977 %P 194-205 %V 14 %N 14 %I mathdoc %U http://geodesic.mathdoc.fr/item/KUKZ_1977_14_14_a19/ %G ru %F KUKZ_1977_14_14_a19