@article{PMATES_2004__48_2_41503,
     author = {Fran\c{c}oise Lust-Piquard},
     title = {Riesz transforms on generalized {Heisenberg} groups and {Riesz} transforms associated to the {Cheat} flow.},
     journal = {Publicacions Matem\`atiques},
     pages = {309-333},
     volume = {48},
     number = {2},
     year = {2004},
     zbl = {an:1061.43013},
     language = {en},
     url = {https://geodesic-test.mathdoc.fr/item/PMATES_2004__48_2_41503/}
}