AVELLANEDA-RIVERA, L. M.; GONZÁLEZ-MORENO, ÁNGELA; SÁEZ-MARTÍNEZ, F. J. The Pursuit of External Knowledge in Eco-Innovation. Analysis of the Agri-Food Sector in Spain. Journal of Business, Universidad del Pacífico (Lima, Peru), v. 10, n. 1, p. 70-92, 31 maio 2018.