Solano-Benavides, Elcira, and Nelson Alandete-Brochero. “Causality and Volatility in the Colcap Index of the Colombian Stock Exchange As a Result of Covid-19 Infections and Deaths”. Ingeniería y Competitividad 26, no. 1 (February 26, 2024): e–20412930. Accessed December 22, 2024. https://revistaingenieria.univalle.edu.co/index.php/ingenieria_y_competitividad/article/view/12930.