%0 Journal Article %A Hartmut Führ %T Generalized Calderón conditions and regular orbit spaces %J Colloquium Mathematicum %D 2010 %P 103-126 %V 120 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/cm120-1-8/ %R 10.4064/cm120-1-8 %G en %F 10_4064_cm120_1_8