Citation: G. Urrero Pena et Jl. Arsuaga, Atapuerca: Imprints of human evolution. A conversation with Juan Luis Arsuaga, CUADERNOS H, (613-14), 2001, pp. 217-225
Citation: G. Urrero Pena, Letters of fervor: Correspondence with Maurice Abramowicz and Jacobo Sureda (1919-1928), CUADERNOS H, (605), 2000, pp. 133-134