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