Affiliation: | 1. Department of Systems and Industrial Engineering, Universidad Nacional de Colombia, Bogotá, Colombia 2. Computer Technology Department, University of Alicante, Carretera San Vicente del Raspeig s/n, 03690, Alicante, Spain 3. Instituto de Informática, PPGC and PGMICRO, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
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