@article{MM2_1980__33_154738,
     author = {Michael Teufel},
     title = {Gl\"attung endlich-differenzierbarer {R\"aume.}},
     journal = {Manuscripta mathematica},
     pages = {37--50},
     publisher = {mathdoc},
     volume = {33},
     year = {1980},
     zbl = {0463.58003},
     url = {http://geodesic.mathdoc.fr/item/MM2_1980__33_154738/}
}