%0 Journal Article %A Jung Wook Lim %A Dong Yeol Oh %T Chain conditions in special pullbacks %J Comptes Rendus. Mathématique %D 2012 %P 655-659 %V 350 %N 13-14 %I Elsevier %R 10.1016/j.crma.2012.07.003 %G en %F CRMATH_2012__350_13-14_655_0