@article{PIM_1998_N_S_63_77_a13,
     author = {Janusz J. Charatonik},
     title = {On {Sets} of {Periodic} and of {Recurrent} {Points}},
     journal = {Publications de l'Institut Math\'ematique},
     pages = {131 },
     publisher = {mathdoc},
     volume = {_N_S_63},
     number = {77},
     year = {1998},
     zbl = {0942.54029},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PIM_1998_N_S_63_77_a13/}
}