BORJÁN, József. RELIABILITY OF NONDESTRUCTlVE CONCRETE TESTS. Periodica Polytechnica Civil Engineering, [S. l.], v. 26, n. 1-2, p. 109–118, 1982. Disponível em: https://pp.bme.hu/ci/article/view/4052. Acesso em: 18 may. 2024.