JOZWIAK, I. J. THE RELIABILITY MODEL OF A SELECTED CLASS OF THE HIERARCHICAL SYSTEMS. Periodica Polytechnica Mechanical Engineering, [S. l.], v. 33, n. 4, p. 141–147, 1989. Disponível em: https://pp.bme.hu/me/article/view/5653. Acesso em: 19 may. 2024.