The megalithic clusters of Deserto and Barrocal das Freiras (Montemor-o-Novo, Middle Alentejo) in the building of the sacred landscapes of ancient peasant societies of the 4th and 3rd millennia BCE. - Gonçalves, Victor dos Santos (Ophiussa : Revista do Instituto de Arqueologia da Faculdade de Letras de Lisboa, 4 (2020), 2020)