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@article{MM2_1984__47_155014, author = {Eduard Zehnder}, title = {The topological behaviour of a diffeomorphism near a fixed point.}, journal = {Manuscripta mathematica}, pages = {251--262}, publisher = {mathdoc}, volume = {47}, year = {1984}, zbl = {0543.58021}, url = {http://geodesic.mathdoc.fr/item/MM2_1984__47_155014/} }
Eduard Zehnder. The topological behaviour of a diffeomorphism near a fixed point.. Manuscripta mathematica, Tome 47 (1984), pp. 251-262. http://geodesic.mathdoc.fr/item/MM2_1984__47_155014/