%0 Journal Article %A Volkov, Michael V. %T Varieties of associative rings closed under ideal sums %J Commentationes Mathematicae Universitatis Carolinae %D 1983 %P 101-103 %V 24 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMUC_1983__24_1_a8/ %G en %F CMUC_1983__24_1_a8