@article{GMJ_2003__10_4_51219, author = {Gvazava, J.}, title = {Nonlocal and initial problems for quasilinear nonstrictly hyperbolic equations with general solutions represented by superpositions of arbitrary functions.}, journal = {Georgian mathematical journal}, pages = {687--707}, year = {2003}, volume = {10}, number = {4}, zbl = {1059.35085}, language = {en}, url = {http://geodesic.mathdoc.fr/item/GMJ_2003__10_4_51219/} }