@article{MAT_1968_12_6_a3,
     author = {Ya. Ihara},
     title = {Algebraic curves $\bmod{\mathfrak p}$ and arithmetic groups},
     journal = {Matematika},
     pages = {56--62},
     publisher = {mathdoc},
     volume = {12},
     number = {6},
     year = {1968},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MAT_1968_12_6_a3/}
}