%0 Journal Article %A Castro-Jiménez, Francisco Jesús %A Ucha-Enrı́quez, José Marı́a %T Quasi-free divisors and duality %J Comptes Rendus. Mathématique %D 2004 %P 461-466 %V 338 %N 6 %I Elsevier %U http://www.numdam.org/articles/10.1016/j.crma.2004.01.006/ %R 10.1016/j.crma.2004.01.006 %G en %F CRMATH_2004__338_6_461_0