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APA Citation
C., M., Schenkl, S., A., S., Schmidt, S., M., D., Hense, H., J., J., Mandl, M., H., H., Maurer, M., & M, M. (2013). knowledge structure maps based on Multiple Domain Matrices. InImpact, 5, 5–. http://access.bl.uk/ark:/81055/vdc_100119510466.0x000001