@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/