@article{IM_1983__73_143058,
     author = {D. M\"uller},
     title = {Calder\'on-Zygmund {Kernels} {Carried} by {Linear} {Subspaces} of {Homogeneous} {Nilpotent} {Lie} {Algebras.}},
     journal = {Inventiones mathematicae},
     pages = {467--490},
     publisher = {mathdoc},
     volume = {73},
     year = {1983},
     zbl = {0521.43009},
     url = {http://geodesic.mathdoc.fr/item/IM_1983__73_143058/}
}