JOHNSEN, E. Churchman, Ackoff and Arnoff: Introduction to Operations Research. 645 sider, $ 12, John Wiley & Sons, Inc., 1957. Ledelse og Erhvervsøkonomi, [S. l.], v. 21, 1957. Disponível em: https://tidsskrift.dk/ledelseogerhvervsoekonomi/article/view/33626. Acesso em: 18 jul. 2024.