[https://www.kauffman.org/what-we-do/research/2015/03/measuring-an-entrepreneurial-ecosystem Measuring an Entrepreneurial Ecosystem]
[https://ideas.darden.virginia.edu/can-entrepreneurial-ecosystems-save-our-cities https://ideas.darden.virginia.edu/can-entrepreneurial-ecosystems-save-our-citiesCan Entrepreneurial Ecosystems Save Our Cities?]