@article{MZ_1986__191_173687,
     author = {Peter Weidemaier},
     title = {Existence of {Regular} {Solutions} for a {Quasilinear} {Wave} {Equation} with the {Third} {Boundary} {Condition.}},
     journal = {Mathematische Zeitschrift},
     pages = {449--466},
     publisher = {mathdoc},
     volume = {191},
     year = {1986},
     url = {http://geodesic.mathdoc.fr/item/MZ_1986__191_173687/}
}