HELDT, H.; HELDT, Jeanne Henri. Etudes sur les civelles de Sidi-Daoud (Cap Bon). INSTM Bulletin : Marine and Freshwater Sciences, Tunis, T.N., n. 16, p. 5–23, 1929. DOI: 10.71754/instm.bulletin.i16.1929.1622. Disponível em: https://www.instm-bulletin.tn/index.php/bulletin/article/view/1622. Acesso em: 29 oct. 2025.