José Manuel Colmenar Rafael Martí Abraham Duarte Heuristics for the Bi-Objective Diversity Problem. 193-205 2018 108 Expert Syst. Appl. https://doi.org/10.1016/j.eswa.2018.05.013 https://www.wikidata.org/entity/Q129753667 db/journals/eswa/eswa108.html#ColmenarMD18