“Block, Joern, Karsten Kohn, Danny Miller Y Katrin Ullrich. 2015 ‘Necessity Entrepreneurship and Competitive Strategy’. Small Business Economics. New York, Volumen 44, Número 1, Pp. 37-54”. 360: Journal of Management Sciences , vol. 1, no. 1, May 2016, pp. 204-9, https://doi.org/10.18800/360gestion.201601.010.