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@article{MM2_1979__29_154667, author = {Claudio Citrini}, title = {Discontinous {Solutions} of a {Nonlinear} {Hyperbolic} {Equation} with {Unilateral} {Constraints.}}, journal = {Manuscripta mathematica}, pages = {323--352}, publisher = {mathdoc}, volume = {29}, year = {1979}, zbl = {0419.35061}, url = {http://geodesic.mathdoc.fr/item/MM2_1979__29_154667/} }
Claudio Citrini. Discontinous Solutions of a Nonlinear Hyperbolic Equation with Unilateral Constraints.. Manuscripta mathematica, Tome 29 (1979), pp. 323-352. http://geodesic.mathdoc.fr/item/MM2_1979__29_154667/