@article{1256045505, author = {Donnelly, Harold}, title = {Index of Hecke operators}, journal = {Illinois J. Math.}, volume = {29}, number = {4}, year = {1985}, pages = { 696-704}, language = {en}, url = {http://dml.mathdoc.fr/item/1256045505} }
Donnelly, Harold. Index of Hecke operators. Illinois J. Math., Tome 29 (1985) no. 4, pp. 696-704. http://gdmltest.u-ga.fr/item/1256045505/