@book { rocolidia2018, author = "Rocha, Leonor and Oliveira, Jorge and Dias, Cristina and Mirão, José and Dias, Luís and Manhita, Ana", title = "About the Presence of Exotic Materials in Some Funerary Megalithic Monuments in Alentejo (Portugal): The Cases of Cinnabar and Amber", publisher = "BAR Publishing", year = "2018" }