Chunling Tong Xiaohui Lin Yuansheng Yang Zhihe Li Equitable total coloring of C<sub>m</sub>C<sub>n</sub>. 596-601 2009 157 Discrete Applied Mathematics 4 http://dx.doi.org/10.1016/j.dam.2008.08.030 db/journals/dam/dam157.html#TongLYL09