Pike, A. W. G., Hoffman, D. L., García-Diez, M.,
Pettitt, P. B., Alcolea, J., De Balbín, R. González-Sainz, C., de las Heras, C., Lasheras, J. A., Montez, R. & Zilhão, J. (2012), Uranium-series dating of Upper Palaeolithic art in Spanish caves. U-Series Dating of Paleolithic Art in 11 Caves in Spain. Science (6087): 1409-1413
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