TRAUFFER, W. . 1950 Fourth straight peak year. Materiales de Construcción, [S. l.], v. 1, n. 026, p. 29–29, 1951. DOI: 10.3989/mc.1951.v01.i026.2828. Disponível em: https://materconstrucc.revistas.csic.es/index.php/materconstrucc/article/view/2828. Acesso em: 20 may. 2024.