@article{10_2298_PIM131217001A,
     author = {Waldo Arriagada and Hugo Ram{\'\i}rez},
     title = {Centers of {Skew} {Polynomial} {Rings}},
     journal = {Publications de l'Institut Math\'ematique},
     pages = {181 },
     publisher = {mathdoc},
     volume = {_N_S_97},
     number = {111},
     year = {2015},
     doi = {10.2298/PIM131217001A},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.2298/PIM131217001A/}
}