The (mod, integral) sum numbers of fans and Kn, n-E(nK2). - Wenqing Dou; Jingzhen Gao (Discret. Math., 2006)

Some results on mod (integral) sum graphs. - Wenqing Dou; Jingzhen Gao (Ars Comb., 2007)

The sum numbers and the integral sum numbers of Pn and Fn. - Haiying Wang; Jingzhen Gao (Ars Comb., 2010)

The sum numbers and the integral sum numbers of Cn and Wn. - Haiying Wang; Jingzhen Gao (Ars Comb., 2010)