KOGEL, G. Faced concrete block. New developments may be concrete masonry´s answer to competitive challenge. Materiales de Construcción, [S. l.], v. 7, n. 078, p. 45–46, 1957. DOI: 10.3989/mc.1957.v07.i078.2062. Disponível em: https://materconstrucc.revistas.csic.es/index.php/materconstrucc/article/view/2062. Acesso em: 2 may. 2024.