CALLAPEZ, P. M.; DANIELSEN, R.; CASTILHO, A. Occurrences of the amphi-Atlantic brown mussel Perna perna (Linné, 1758) (Mollusca, Bivalvia) in South Portugal since the Atlantic “climatic optimum”. Estudos do Quaternário Quaternary Studies, n. 8, p. 13-21, 26 dez. 2012.