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@article{MZ_1993__212_4_174470, author = {H. Hofer and A. Floer}, title = {Coherent orientations for periodic orbit problems in symplectic geometry.}, journal = {Mathematische Zeitschrift}, pages = {13--38}, publisher = {mathdoc}, volume = {212}, number = {4}, year = {1993}, zbl = {0789.58022}, url = {http://geodesic.mathdoc.fr/item/MZ_1993__212_4_174470/} }
H. Hofer; A. Floer. Coherent orientations for periodic orbit problems in symplectic geometry.. Mathematische Zeitschrift, Tome 212 (1993) no. 4, pp. 13-38. http://geodesic.mathdoc.fr/item/MZ_1993__212_4_174470/