%0 Journal Article %A Mirosław Uscki %T On exact modules over a commutative exact ring %J Colloquium Mathematicum %D 1978 %P 197-202 %V 40 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/cm-40-2-197-202/ %R 10.4064/cm-40-2-197-202 %G en %F 10_4064_cm_40_2_197_202