%0 Journal Article %A Szeto, George %A Wong, Yuen-Fat %T Cyclic extensions and crossed-products %J Portugaliae mathematica %D 1983 %P 249-254 %V 42 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/PORMA_1983__42_3_115540/ %G en %F PORMA_1983__42_3_115540