Reference

Helga Bara Bartels-Jonsdottir, Karen Luise Knudsen, Joachim Schönfeld, Susana M. Lebreiro, Fatima G. Abrantes (2006): Recent benthic foraminifera from the Tagus Prodelta and Estuary, Portugal: microhabitats, assemblage composition and stable isotopes – Zitteliana Serie A – 46: 91 - 104.