Exact traveling wave solutions for discrete conservation laws. Zhao, Hong Liang, Zhang, Guang, Cheng, Sui Sun (2005) Portugaliae Mathematica. Nova Série
Existence results for nonlinear fractional difference equation. Chen, Fulai, Luo, Xiannan, Zhou, Yong (2011) Advances in Difference Equations [electronic only]
Expressions of solutions for a class of differential equations. Elsayed, E.M. (2010) Analele Ştiinţifice ale Universităţii “Ovidius" Constanţa. Seria: Matematică