%0 Journal Article %A Maad, Sara %T A Semilinear Problem for the Heisenberg Laplacian on Unbounded Domains %J Canadian journal of mathematics %D 2005 %P 1279-1290 %V 57 %N 6 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-2005-051-4/ %R 10.4153/CJM-2005-051-4 %F 10_4153_CJM_2005_051_4