@article{IM_1983__74_143079,
     author = {A. Dold},
     title = {Fixed point indices of iterated maps.},
     journal = {Inventiones mathematicae},
     pages = {419--436},
     publisher = {mathdoc},
     volume = {74},
     year = {1983},
     zbl = {0583.55001},
     url = {http://geodesic.mathdoc.fr/item/IM_1983__74_143079/}
}