@article{MAN_1973__201_162390,
     author = {Werner Meyer},
     title = {Die {Signatur} von {Fl\"achenb\"undeln.}},
     journal = {Mathematische Annalen},
     pages = {239--264},
     publisher = {mathdoc},
     volume = {201},
     year = {1973},
     zbl = {0241.55019},
     url = {http://geodesic.mathdoc.fr/item/MAN_1973__201_162390/}
}