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APA Citation
Ploetzner, R., Fillisch, B., Gewald, P., & Ruf, T. (2016). the role of student-generated externalizations in strategic multimedia learning and how current (web-)technology fails to support learner engagement. Interactive learning environments, 24(7), 1610–1628. http://access.bl.uk/ark:/81055/vdc_100038676415.0x000027