@article{RLIN_2002_9_13_3-4_a4,
     author = {Cowling, Michael and De Mari, Filippo and Kor\'anyi, Adam and Reimann, Hans Martin},
     title = {Contact and conformal maps on {Iwasawa} {N} groups},
     journal = {Atti della Accademia nazionale dei Lincei. Rendiconti Lincei. Matematica e applicazioni},
     pages = {219--232},
     publisher = {mathdoc},
     volume = {Ser. 9, 13},
     number = {3-4},
     year = {2002},
     zbl = {1225.22012},
     mrnumber = {1809879},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RLIN_2002_9_13_3-4_a4/}
}