%0 Journal Article %A M.S. Baouendi %A L.P. Rothschild %T CR structures with group action and extendability of CR function. %J Inventiones mathematicae %D 1985 %P 359-396 %V 82 %I mathdoc %U http://geodesic.mathdoc.fr/item/IM_1985__82_143291/ %F IM_1985__82_143291