%0 Journal Article %A E. Gesztelyi %T On a generalization of the convolution %J Annales Polonici Mathematici %D 1969 %P 351-358 %V 22 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/ap-22-3-351-358/ %R 10.4064/ap-22-3-351-358 %G en %F 10_4064_ap_22_3_351_358