@article{PIM_1971_N_S_11_25_a4,
     author = {S. P. Singh},
     title = {On {Fixed} {Points}},
     journal = {Publications de l'Institut Math\'ematique},
     pages = {29 },
     year = {1971},
     volume = {_N_S_11},
     number = {25},
     url = {http://geodesic.mathdoc.fr/item/PIM_1971_N_S_11_25_a4/}
}