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APA Citation
Fagginger Auer, M. F., Hickendorff, M., & van Putten, C. M. (n.d.). solution strategies and adaptivity in multidigit division in a choice/no-choice experiment: Student and instructional factors. Learning and instruction, 41, 52–59. http://access.bl.uk/ark:/81055/vdc_100029833353.0x00001d