Gruhn, A. G.. Lord Kelvin was wrong: About the effectiveness of innovation indexes. REVISTA PROCESOS DE MERCADO, [S. l.], v. 11, n. 1, p. 343–366, 2014. DOI: 10.52195/pm.v11i1.184. Disponível em: https://procesosdemercado.com/revista/2014/vol-11/num-1/lord-kelvin-was-wrong-about-the-effectiveness-of-innovation-indexes. Acesso em: 31 mar. 2026.