%0 Journal Article %A K. Urbanik %T Generalized convolutions IV %J Studia Mathematica %D 1986 %P 97-104 %V 83 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/sm-83-2-97-104/ %R 10.4064/sm-83-2-97-104 %G en %F 10_4064_sm_83_2_97_104