@article{1102969433, author = {Nussbaum, Roger D.}, title = {A geometric approach to the fixed point index.}, journal = {Pacific J. Math.}, volume = {39}, number = {3}, year = {1971}, pages = { 751-766}, language = {en}, url = {http://dml.mathdoc.fr/item/1102969433} }
Nussbaum, Roger D. A geometric approach to the fixed point index.. Pacific J. Math., Tome 39 (1971) no. 3, pp. 751-766. http://gdmltest.u-ga.fr/item/1102969433/