%0 Journal Article %A Sarrico, C.O.R. %T Some distributional products with relativistic invariance. %J Portugaliae mathematica %D 1994 %P 283-290 %V 51 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/PORMA_1994__51_2_47064/ %G en %F PORMA_1994__51_2_47064