Jesus M. Sanchez-Gomez, M. A. Vega-Rodríguez, and C. J. Pérez. “An Indicator-Based Multi-Objective Optimization Approach Applied to Extractive Multi-Document Text Summarization”. IEEE Latin America Transactions, vol. 17, no. 8, Dec. 2019, pp. 1291-9, https://latamt.ieeer9.org/index.php/transactions/article/view/2311.