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@article{CMH_1977__52_139687, author = {Daniel Asimov}, title = {Flaccidity of geometric index for nonsingular vector fields.}, journal = {Commentarii mathematici Helvetici}, pages = {161--176}, publisher = {mathdoc}, volume = {52}, year = {1977}, zbl = {0366.58011}, url = {http://geodesic.mathdoc.fr/item/CMH_1977__52_139687/} }
Daniel Asimov. Flaccidity of geometric index for nonsingular vector fields.. Commentarii mathematici Helvetici, Tome 52 (1977), pp. 161-176. http://geodesic.mathdoc.fr/item/CMH_1977__52_139687/