@article{MZ_1993__213_1_174515,
     author = {F.R. Cohen and R.L. Cohen and B.M. Mann},
     title = {The homotopy type of rational functions.},
     journal = {Mathematische Zeitschrift},
     pages = {37--48},
     publisher = {mathdoc},
     volume = {213},
     number = {1},
     year = {1993},
     zbl = {0790.55005},
     url = {http://geodesic.mathdoc.fr/item/MZ_1993__213_1_174515/}
}