@article{MZ_1980__171_172922,
     author = {Yves Colin de Verdier},
     title = {Spectre conjoint d'op\'erateurs pseudo-diff\'erentiels qui commutent.},
     journal = {Mathematische Zeitschrift},
     pages = {51--74},
     publisher = {mathdoc},
     volume = {171},
     year = {1980},
     zbl = {0478.35073},
     url = {http://geodesic.mathdoc.fr/item/MZ_1980__171_172922/}
}