Díaz-Piedrahíta, S.; Fernández Alonso, J. L. SKETCHES ATTRIBUTED TO FRANCISCO JAVIER MATÍS (1763-1851). AUTHENTICITY OR FRAUD?. Rev. Acad. Colomb. Cienc. Ex. Fis. Nat. 2012, 36 (140), 399-409. https://doi.org/10.18257/raccefyn.36(140).2012.2479.