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Rodic, M.; Tikhomirova, T.N.; Kolienko, T.; Malykh, S.; Bogdanova, O.Y.; Zueva, D.Y,; Gynku, E.I.; Wan, S.; Zhou, X. and Kovas, Yulia. 2015. Spatial complexity of character based writing systems and arithmetic in primary school: a longitudinal study. In: Ann Dowker and Hans-Christoph Nuerk, eds. "Linguistic Influences on Mathematics" (eBook). Frontiers in Psychology. ISBN 978-2-88945-200-2 [Book Section]