%0 Journal Article %A Bergman, John G. %T A duality theorem for standard threads %J Czechoslovak Mathematical Journal %D 1971 %P 167-171 %V 21 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1971.101014/ %R 10.21136/CMJ.1971.101014 %G en %F 10_21136_CMJ_1971_101014