NAGY, László; HUSZÁK, Tamás. Investigation of piping material. Periodica Polytechnica Civil Engineering, [S. l.], v. 56, n. 2, p. 233–238, 2012. 10.3311/pp.ci.2012-2.09. Disponível em: https://pp.bme.hu/ci/article/view/463. Acesso em: 18 jun. 2025.