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APA Citation
Laender, A. H. F., Pernici, B., Lim, E., & Oliveira, J. P. M. d. (Eds.) (2019). Conceptual modeling : 38th International Conference, ER 2019, Salvador, Brazil, November 4-7, 2019, Proceedings. Cham, Switzerland : Springer. http://access.bl.uk/ark:/81055/vdc_100091576328.0x000001