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@article{JRAM_1987__377_152931, author = {Kunrui Yu}, title = {A generalization of {Mahler's} classification to several variables.}, journal = {Journal f\"ur die reine und angewandte Mathematik}, pages = {113--126}, publisher = {mathdoc}, volume = {377}, year = {1987}, zbl = {0614.10031}, url = {http://geodesic.mathdoc.fr/item/JRAM_1987__377_152931/} }
Kunrui Yu. A generalization of Mahler's classification to several variables.. Journal für die reine und angewandte Mathematik, Tome 377 (1987), pp. 113-126. http://geodesic.mathdoc.fr/item/JRAM_1987__377_152931/