@article{MOMA_1994__117_3-4_178650, author = {Ya-Guang Wang}, title = {The {Semilinear} {Second-Order} {Hyperbolic} {Equation} with {Data} {Strongly} {Singular} at {One} {Point.}}, journal = {Monatshefte f\"ur Mathematik}, pages = {285--302}, publisher = {mathdoc}, volume = {117}, number = {3-4}, year = {1994}, zbl = {0799.35160}, url = {http://geodesic.mathdoc.fr/item/MOMA_1994__117_3-4_178650/} }