%0 Journal Article %A A. Hulanicki %T Invariant subsets of nonsynthesis Leptin algebras and nonsymmetry %J Colloquium Mathematicum %D 1980 %P 127-136 %V 43 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/cm-43-1-127-136/ %R 10.4064/cm-43-1-127-136 %G en %F 10_4064_cm_43_1_127_136