Tuanjie Tong Go Eguchi Jaehoon Cheon John Callahan Laurence L. Leff Rules about XML in XML. 397-411 2006 30 Expert Syst. Appl. 2 http://dx.doi.org/10.1016/j.eswa.2005.09.084 db/journals/eswa/eswa30.html#TongECCL06