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@article{MAN_1977__228_162995, author = {Roger D. Nussbaum}, title = {Generalizing the {Fixed} {Point} {Index.}}, journal = {Mathematische Annalen}, pages = {259--278}, publisher = {mathdoc}, volume = {228}, year = {1977}, zbl = {0365.58005}, url = {http://geodesic.mathdoc.fr/item/MAN_1977__228_162995/} }
Roger D. Nussbaum. Generalizing the Fixed Point Index.. Mathematische Annalen, Tome 228 (1977), pp. 259-278. http://geodesic.mathdoc.fr/item/MAN_1977__228_162995/