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@article{IM_1993__112_3_144101, author = {G. M\'etivier}, title = {Counterexamples to {H\"olmgren's} uniqueness for analytic non linear {Cauchy} problem.}, journal = {Inventiones mathematicae}, pages = {217--222}, publisher = {mathdoc}, volume = {112}, number = {3}, year = {1993}, zbl = {0794.35026}, url = {http://geodesic.mathdoc.fr/item/IM_1993__112_3_144101/} }
G. Métivier. Counterexamples to Hölmgren's uniqueness for analytic non linear Cauchy problem.. Inventiones mathematicae, Tome 112 (1993) no. 3, pp. 217-222. http://geodesic.mathdoc.fr/item/IM_1993__112_3_144101/