@article{10_4153_CJM_2005_024_7,
     author = {Kornelson, Keri A.},
     title = {Local {Solvability} of {Laplacian} {Difference} {Operators} {Arising} from the {Discrete} {Heisenberg} {Group}},
     journal = {Canadian journal of mathematics},
     pages = {598--615},
     year = {2005},
     volume = {57},
     number = {3},
     doi = {10.4153/CJM-2005-024-7},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-2005-024-7/}
}