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(2) Guangyuan Zhang, Fixed point indices and periodic points of holomorphic mappings, Mathematische Annalen, 2007, 337 (2): 401 - 433.
(3) Guangyuan Zhang, BIFURCATIONS OF PERIODIC POINTS OF HOLOMORPHIC MAPS FROM C2 INTO C2, Proceedings of the London Mathematical Society, 1999. 79 (2) : 353 - 380.
