%0 Journal Article %A K. Urbanik %T Generalized convolutions %J Studia Mathematica %D 1963 %P 217-245 %V 23 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/sm-23-3-217-245/ %R 10.4064/sm-23-3-217-245 %G en %F 10_4064_sm_23_3_217_245