“Identification of Decorative Pigments in Ceramic and Stone Artefacts from Late Antiquity, Islamic Period and Modern Age belonging to the Archaeological Collection of the Rectory of the University of Coimbra, by Raman Spectroscopy”, U. F. Marques, S. Filipe, H. Catarino, B. A. Nogueira and R. Fausto, in “Current Approaches, Solutions and Practices in Conservation of Cultural Heritage”