%0 Journal Article %A Isolda Cardoso %A Linda Saal %T Explicit fundamental solutions of some second order differential operators on Heisenberg groups %J Colloquium Mathematicum %D 2012 %P 263-288 %V 129 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/cm129-2-7/ %R 10.4064/cm129-2-7 %G en %F 10_4064_cm129_2_7