VERHAGEN, C. M. IMPROVEMENTS IN THE ELECTRIC STEP GAUGE FOR MEASURING WAVE HEIGHTS. Coastal Engineering Proceedings, [S. l.], v. 1, n. 6, p. 14, 1957. DOI: 10.9753/icce.v6.14. Disponível em: https://icce-ojs-tamu.tdl.org/icce/article/view/1879. Acesso em: 28 mar. 2024.