%0 Journal Article %A Janusz Adamus %A Hadi Seyedinejad %T Flatness testing over singular bases %J Annales Polonici Mathematici %D 2013 %P 87-96 %V 107 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/ap107-1-6/ %R 10.4064/ap107-1-6 %G en %F 10_4064_ap107_1_6