%0 Journal Article %A David Grow %T A class of $I_0$-sets %J Colloquium Mathematicum %D 1987 %P 111-124 %V 53 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/cm-53-1-111-124/ %R 10.4064/cm-53-1-111-124 %G en %F 10_4064_cm_53_1_111_124