@article{10_4064_cm129_2_7,
     author = {Isolda  Cardoso and Linda Saal},
     title = {Explicit fundamental solutions of some second order differential operators on {Heisenberg} groups},
     journal = {Colloquium Mathematicum},
     pages = {263--288},
     publisher = {mathdoc},
     volume = {129},
     number = {2},
     year = {2012},
     doi = {10.4064/cm129-2-7},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/cm129-2-7/}
}