@article{GDZPPN002352613,
title = {Invariant Differential Operators and Polynomials of Lie Transformation Groups.},
journal = {Mathematica Scandinavica},
volume = {34},
year = {1974},
pages = {109-123},
zbl = {0287.58008},
url = {http://dml.mathdoc.fr/item/GDZPPN002352613}
}
Hole, Arne. Invariant Differential Operators and Polynomials of Lie Transformation Groups.. Mathematica Scandinavica, Tome 34 (1974) pp. 109-123. http://gdmltest.u-ga.fr/item/GDZPPN002352613/