@article{TAC_2003_11_a11,
     author = {Michael Barr and W.D. Burgess and R. Raphael},
     title = {Ring epimorphisms and {C(X)}},
     journal = {Theory and applications of categories},
     pages = {283--308},
     year = {2003},
     volume = {11},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/TAC_2003_11_a11/}
}