J. H. Jerez Jaimes and E. X. Narváez Parra, “Spatial distribution of Exogyra boussingaulti of the Tibú-Mercedes Formation (Cretaceous: Aptian-Albian) in the Municipality of San Andrés (Santander: Colombia)”, Innovaciencia, vol. 8, no. 1, pp. 1–8, Dec. 2020, doi: 10.15649/2346075X.817.