@article{MM2_1995__86_3_156054,
     author = {Puqi Tang and Luca Gapogna},
     title = {Uniform domains and quasiconformal mappings on the {Heisenberg} groups.},
     journal = {Manuscripta mathematica},
     pages = {267--282},
     publisher = {mathdoc},
     volume = {86},
     number = {3},
     year = {1995},
     zbl = {0824.30011},
     url = {http://geodesic.mathdoc.fr/item/MM2_1995__86_3_156054/}
}