Two Simple Proofs of Winquist's Identity. - Chutchai Nupet; Sarachai Kongsiriwong (Electron. J. Comb., 2010)

On the number of solutions of the Tarry-Escott problem of degree two and the related problem over some finite fields. - Sarachai Kongsiriwong; Supawadee Prugsapitak (Period. Math. Hung., 2014)