F. Á. Marulanda Valencia, I. A. Montoya Restrepo, and J. M. Vélez Restrepo, “Theoretical and Empirical Contributions to the Study of Entrepreneurs”, cuad.adm., vol. 30, no. 51, pp. 89–99, Jan. 2014, doi: 10.25100/cdea.v30i51.46.