AFONSO, Oscar; MONTEIRO, Sara; THOMPSON, Maria. A growth model for the quadruple helix. Journal of Business Economics and Management, [S. l.], v. 13, n. 5, p. 849–865, 2012. DOI: 10.3846/16111699.2011.626438. Disponível em: https://journals.vilniustech.lt/index.php/JBEM/article/view/4431. Acesso em: 12 jun. 2025.