@article{GDZPPN002214008,
title = {Singular integrals on Iwasawa NA groups of rank 1.},
journal = {Journal f\"ur die reine und angewandte Mathematik},
volume = {475},
year = {1996},
pages = {39-66},
zbl = {0855.43010},
url = {http://dml.mathdoc.fr/item/GDZPPN002214008}
}
Sjögren, Peter; Gaudry, Garth. Singular integrals on Iwasawa NA groups of rank 1.. Journal für die reine und angewandte Mathematik, Tome 475 (1996) pp. 39-66. http://gdmltest.u-ga.fr/item/GDZPPN002214008/