%0 Journal Article %A Jan Krempa %T Logical connections between some open problems concerning nil rings %J Fundamenta Mathematicae %D 1972 %P 121-130 %V 76 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/fm-76-2-121-130/ %R 10.4064/fm-76-2-121-130 %G en %F 10_4064_fm_76_2_121_130