@article{GDZPPN002229048,
title = {Zur Spektralinvarianz von Algebren von Pseudodifferentialoperatoren in der Lp-Theorie.},
journal = {Manuscripta mathematica},
volume = {61},
year = {1988},
pages = {459-476},
zbl = {0674.47033},
url = {http://dml.mathdoc.fr/item/GDZPPN002229048}
}
Ueberberg, Johannes. Zur Spektralinvarianz von Algebren von Pseudodifferentialoperatoren in der Lp-Theorie.. Manuscripta mathematica, Tome 61 (1988) pp. 459-476. http://gdmltest.u-ga.fr/item/GDZPPN002229048/