Cabral-Oliveira, Joana, Paulo Maranhão, and Miguel Ângelo Pardal. 2009. “The Effect of Sewage Discharge on Melarhaphe Neritoides (Gastropoda: Littorinidae) Population Dynamics”. Scientia Marina 73 (2):259-67. https://doi.org/10.3989/scimar.2009.73n2259.