@article{MZ_1985__190_173622,
     author = {H.D. Alber},
     title = {Local {Existence} of {Weak} {Solutions} to the {Quasi-Linear} {Wave} {Equation} for {Large} {Initial} {Values.}},
     journal = {Mathematische Zeitschrift},
     pages = {249--276},
     publisher = {mathdoc},
     volume = {190},
     year = {1985},
     zbl = {0581.35049},
     url = {http://geodesic.mathdoc.fr/item/MZ_1985__190_173622/}
}