%0 Journal Article %A J. MikusiƄski %T Germs and their Operational Calculus %J Studia Mathematica %D 1965 %P 315-325 %V 26 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/sm-26-3-315-325/ %R 10.4064/sm-26-3-315-325 %G en %F 10_4064_sm_26_3_315_325