%0 Journal Article %A Bigolin, Francesco %T Regularity results for a class of obstacle problems in Heisenberg groups %J Applications of Mathematics %D 2013 %P 531-554 %V 58 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.1007/s10492-013-0027-1/ %R 10.1007/s10492-013-0027-1 %G en %F 10_1007_s10492_013_0027_1