@article{MAN_1993__295_1_165070,
     author = {Peter Teichner},
     title = {On the signatur of four-manifolds with universal covering spin.},
     journal = {Mathematische Annalen},
     pages = {745--760},
     year = {1993},
     volume = {295},
     number = {1},
     zbl = {0793.57009},
     url = {http://geodesic.mathdoc.fr/item/MAN_1993__295_1_165070/}
}