In situ characterization by Raman and X-ray fluorescence spectroscopy of post-Paleolithic blackish pictographs exposed to the open air in Los Chaparros shelter (Albalate del Arzobispo, Teruel, Spain)

1. Pitarch, À.
2. Ruiz, J.F.
3. Fdez-Ortiz De Vallejuelo, S.
4. Hernanz, A.
5. Maguregui, M.
6. Madariaga, J.M.