%0 Journal Article %A B. Schweizer %A A. Sklar %T Operations on distribution functions not derivable from operations on random variables %J Studia Mathematica %D 1974 %P 43-52 %V 52 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/sm-52-1-43-52/ %R 10.4064/sm-52-1-43-52 %G en %F 10_4064_sm_52_1_43_52