@article{GDZPPN002350750,
title = {Invariant Pseudo-Differential Operators.},
journal = {Mathematica Scandinavica},
volume = {28},
year = {1971},
pages = {105-123},
zbl = {0226.58010},
url = {http://dml.mathdoc.fr/item/GDZPPN002350750}
}
Stetkaer, Henrik. Invariant Pseudo-Differential Operators.. Mathematica Scandinavica, Tome 28 (1971) pp. 105-123. http://gdmltest.u-ga.fr/item/GDZPPN002350750/