Bayarri, Vicente; Prada, Alfredo; García García, Francisco; Díaz-González, Lucía M.; De las Heras, Carmen; Castillo, Elena; Fatás, Pilar(MDPI AG, 2023-02)
[EN] Rock art offers traces of our most remote past and was made with mineral and organic substances in shelters, walls, or the ceilings of caves. As it is notably fragile, it is fortunate that some instances remain ...