@article{MM2_1992__74_2_155689,
     author = {A. El Kacimi Alaoui},
     title = {Invariants de certaines actions de lie instabilit\'e du caract\`ere {Fredholm.}},
     journal = {Manuscripta mathematica},
     pages = {143--160},
     publisher = {mathdoc},
     volume = {74},
     number = {2},
     year = {1992},
     zbl = {0751.57013},
     url = {http://geodesic.mathdoc.fr/item/MM2_1992__74_2_155689/}
}