M. G. Mayor Ravines, Juan Guillermo Mayor Gamero, J. A. Velásquez Vásquez, and J. V. Mayuri Barrón, “Digital transformation in SMEs: systematic review of factors, barriers and results”, Revista InveCom, vol. 6, no. 3, pp. 1–9, Nov. 2025, doi: 10.5281/zenodo.17656442.