@article{MS2_1983__52_166847, author = {Jacob Jacobsen}, title = {Eigenspace representations of nilpotent {Lie} groups.}, journal = {Mathematica Scandinavica}, pages = {321--333}, year = {1983}, volume = {52}, zbl = {0513.22007}, url = {http://geodesic.mathdoc.fr/item/MS2_1983__52_166847/} }