@article{10_4064__41_1_69_90,
     author = {Jalal Shatah},
     title = {Regularity results for semilinear and geometric wave equations},
     journal = {Banach Center Publications},
     pages = {69--90},
     publisher = {mathdoc},
     volume = {41},
     number = {1},
     year = {1997},
     doi = {10.4064/-41-1-69-90},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/-41-1-69-90/}
}