%0 Journal Article %A Jokhadze, Otari %T Darboux and Goursat type problems in the trihedral angle for hyperbolic type equations of third order %J Rendiconti del Seminario Matematico della Università di Padova %D 1997 %P 107-123 %V 98 %I Seminario Matematico of the University of Padua %U http://www.numdam.org/item/RSMUP_1997__98__107_0/ %G en %F RSMUP_1997__98__107_0