Van Waelbroeck, J. (1966) “Les applications de l’économétrie à la gestion des affaires publiques”, JORBEL - Belgian Journal of Operations Research, Statistics, and Computer Science, 6(3-4), pp. 50–54. Available at: https://www.orbel.be/jorbel/index.php/jorbel/article/view/56 (Accessed: 6 May 2024).