@article{10_4153_CJM_1999_038_5,
     author = {Witherspoon, Sarah J.},
     title = {The {Representation} {Ring} and the {Centre} of a {Hopf} {Algebra}},
     journal = {Canadian journal of mathematics},
     pages = {881--896},
     year = {1999},
     volume = {51},
     number = {4},
     doi = {10.4153/CJM-1999-038-5},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1999-038-5/}
}