HELDT, Janne Henri. Contribution à la biologies de pénéides. INSTM Bulletin : Marine and Freshwater Sciences, Tunis, T.N., n. 47, p. 5–26, 1954. DOI: 10.71754/instm.bulletin.v.1590. Disponível em: https://www.instm-bulletin.tn/index.php/bulletin/article/view/1590. Acesso em: 14 sep. 2025.