Surface UV Radiation in the South of Portugal: Monitoring and Assessment of Cloud Effects - Costa, Maria João; Bortoli, Daniele; Pereira, Sérgio; Salgueiro, Vanda; Silva, Ana Maria; Serrano, Antonio; Antón, Manuel; Vilaplana, Jose Manuel; Cancillo, Maria Luisa; Santos, Dina; Kulkarni, Pavan (2013)