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APA Citation
(Professor), C., Huynh, V., Nguyen, N. G., & Tang, X. (Eds.) (2019). Knowledge and systems sciences : 20th International Symposium, KSS 2019, Da Nang, Vietnam, November 29-December 1, 2019, Proceedings. Singapore : Springer. http://access.bl.uk/ark:/81055/vdc_100091740149.0x000001