@article{JRAM_1996__479_153853,
     author = {Peter Sj\"ogren and Garth Gaudry},
     title = {Singular integrals on {Iwasawa} {NA} groups of rank 1.},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {39--66},
     publisher = {mathdoc},
     volume = {479},
     year = {1996},
     zbl = {0855.43010},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1996__479_153853/}
}