Analysis of Alfredo Volpi's painting with EDXRF, spectrophotometer and multispectral imaging - Mori, Eva Kaiser; Del Lama, Eliane A.; Rizzutto, Márcia de Almeida; Kajiya, Elizabeth Alfredi de Mattos; Campos, Pedro Herzilio Ottoni Viviani de (Colours 2015: Bridging Science with Art, 2015)