@article{10_4153_CMB_1969_106_1,
     author = {Holmes, R.D.},
     title = {On {Fixed} and {Periodic} {Points} {Under} {Certain} {Sets} of {Mappings}},
     journal = {Canadian mathematical bulletin},
     pages = {813--822},
     year = {1969},
     volume = {12},
     number = {6},
     doi = {10.4153/CMB-1969-106-1},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1969-106-1/}
}