@article{10_1017_S0017089500031384,
     author = {Rotkiewicz, A.},
     title = {On the theorem of {W\'ojcik}},
     journal = {Glasgow mathematical journal},
     pages = {157--162},
     year = {1996},
     volume = {38},
     number = {2},
     doi = {10.1017/S0017089500031384},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S0017089500031384/}
}