@article{1077288814, author = {Massey, David B.}, title = {Numerical invariants of perverse sheaves}, journal = {Duke Math. J.}, volume = {76}, number = {1}, year = {1994}, pages = { 307-369}, language = {en}, url = {http://dml.mathdoc.fr/item/1077288814} }
Massey, David B. Numerical invariants of perverse sheaves. Duke Math. J., Tome 76 (1994) no. 1, pp. 307-369. http://gdmltest.u-ga.fr/item/1077288814/