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APA Citation
Lowie, W., Verspoor, M., Hulstijn, J. H., Ellis, R., & Eskildsen, S. W. (2015). variability and Variation in Second Language Acquisition Orders: A Dynamic Reevaluation. Language learning, 65(1), 63–88. http://access.bl.uk/ark:/81055/vdc_100025126894.0x00002f