@article{MM2_1980__32_154716,
     author = {Michael Langenbruch},
     title = {Dualraum und {Topologie} der (lokal) langsam wachsenden {Null\"osungen} hypoelliptischer {Differentialoperatoren.}},
     journal = {Manuscripta mathematica},
     pages = {29--50},
     publisher = {mathdoc},
     volume = {32},
     year = {1980},
     zbl = {0445.46031},
     url = {http://geodesic.mathdoc.fr/item/MM2_1980__32_154716/}
}