PAELINCK, J.; WAELBROECK, J. Etude empirique sur l’évolution des coefficients input-output. JORBEL - Belgian Journal of Operations Research, Statistics, and Computer Science, [S. l.], v. 4, n. 1, p. 3–12, 1963. Disponível em: https://www.orbel.be/jorbel/index.php/jorbel/article/view/7. Acesso em: 5 may. 2024.