JOHNSEN, Erik. David K. Lloyd and Myron Lipow, Reliability: management, methods, and mathematics, Prentice-Hall Space Technology Series, C. W. Besserer and I Floyd E. Nixon, Editors, Prentice-Hall, Inc., Englewood Cliffs, New Jersey, ■ 1962. Ledelse og Erhvervsøkonomi, [S. l.], v. 28, 1964. Disponível em: https://tidsskrift.dk/ledelseogerhvervsoekonomi/article/view/34199. Acesso em: 6 dec. 2025.