%0 Journal Article %A Paweł Głowacki %T The Rockland condition for nondifferential convolution operators II %J Studia Mathematica %D 1991 %P 99-114 %V 98 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/sm-98-2-99-114/ %R 10.4064/sm-98-2-99-114 %G en %F 10_4064_sm_98_2_99_114