Chemical characterization of black stains on mural paintings with granite support from churches of Northern Portugal

Campos, BrunoMarco, AlexandraValadas, SaraBobos, IuliuVieira, EduardaPintado, ManuelaMoreira, Patricia2024-01-092024-01-092019-04http://hdl.handle.net/10400.14/43520engChemical characterization of black stains on mural paintings with granite support from churches of Northern Portugalconference object