PENCIU, A.; STATE, G. Considerations sur la teneur en Ca++, Mg++, Na+, K des eaux coteres du littoral roumain Mer Noire . Cercetări Marine - Recherches Marines, [S. l.], v. 5, n. 1, p. 173–179, 2026. Disponível em: https://www.marine-research-journal.org/index.php/cmrm/article/view/407. Acesso em: 12 may. 2026.