@article{1256069292,
author = {Efrat, Isaac},
title = {Eisenstein series and Cartan groups},
journal = {Illinois J. Math.},
volume = {31},
number = {2},
year = {1987},
pages = { 428-437},
language = {en},
url = {http://dml.mathdoc.fr/item/1256069292}
}
Efrat, Isaac. Eisenstein series and Cartan groups. Illinois J. Math., Tome 31 (1987) no. 2, pp. 428-437. http://gdmltest.u-ga.fr/item/1256069292/