JOHNSEN, E. Notes on Operations Research, 1959, udgivet af Operations Research Center, M. I. T. The Technology Press, Massachusetts Institute of Technology, Cambridge 39, Massachusetts. 1959. 256 sider. Ledelse og Erhvervsøkonomi, [S. l.], v. 26, 1962. Disponível em: https://tidsskrift.dk/ledelseogerhvervsoekonomi/article/view/33992. Acesso em: 18 jul. 2024.