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@article{TRSPY_1973_132_a15, author = {Ya. Ihara}, title = {On $(\infty\times p)$-adic coverings of curves (the simplest example)}, journal = {Informatics and Automation}, pages = {118--131}, publisher = {mathdoc}, volume = {132}, year = {1973}, language = {en}, url = {http://geodesic.mathdoc.fr/item/TRSPY_1973_132_a15/} }
Ya. Ihara. On $(\infty\times p)$-adic coverings of curves (the simplest example). Informatics and Automation, Proceedings of the international conference on number theory, Tome 132 (1973), pp. 118-131. http://geodesic.mathdoc.fr/item/TRSPY_1973_132_a15/