@article{IM_1974__25_142291,
     author = {Albrecht Dold},
     title = {The {Fixed} {Point} {Index} of {Fibre-Preserving} {Maps.}},
     journal = {Inventiones mathematicae},
     pages = {281--298},
     publisher = {mathdoc},
     volume = {25},
     year = {1974},
     zbl = {0284.55007},
     url = {http://geodesic.mathdoc.fr/item/IM_1974__25_142291/}
}