%0 Journal Article %A A. V. Zhuchin %T Local contracted semigroup rings %J Fundamentalʹnaâ i prikladnaâ matematika %D 2001 %P 939-944 %V 7 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/FPM_2001_7_3_a23/ %G ru %F FPM_2001_7_3_a23