Nájera-Sánchez, J.-J., E.-M. Mora-Valentín, M. Ortiz-de-Urbina-Criado, and P. Moura-Díez. “Mapping the Conceptual Structure of Environmental Management: A Co-Word Analysis”. Business: Theory and Practice, vol. 20, Feb. 2019, pp. 69-80, doi:10.3846/btp.2019.07.