Voir la notice de l'article provenant de la source Math-Net.Ru
@article{MAT_1972_16_5_a3, author = {Ya. Ihara}, title = {On congruence monodromy {problems.~II}}, journal = {Matematika}, pages = {42--104}, publisher = {mathdoc}, volume = {16}, number = {5}, year = {1972}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MAT_1972_16_5_a3/} }
Ya. Ihara. On congruence monodromy problems.~II. Matematika, Tome 16 (1972) no. 5, pp. 42-104. http://geodesic.mathdoc.fr/item/MAT_1972_16_5_a3/