%0 Journal Article %A Frank Raymond %A P.E. Conner %T A quadratic form on the quotient of a periodic map. %J Semigroup forum %D 1974 %P 310-333 %V 7 %I mathdoc %U http://geodesic.mathdoc.fr/item/SF_1974__7_134013/ %F SF_1974__7_134013