@article{RSMUP_1997__98__107_0,
     author = {Jokhadze, Otari},
     title = {Darboux and {Goursat} type problems in the trihedral angle for hyperbolic type equations of third order},
     journal = {Rendiconti del Seminario Matematico della Universit\`a di Padova},
     pages = {107--123},
     publisher = {Seminario Matematico of the University of Padua},
     volume = {98},
     year = {1997},
     mrnumber = {1492972},
     zbl = {0893.35064},
     language = {en},
     url = {http://www.numdam.org/item/RSMUP_1997__98__107_0/}
}