Grey system model with the fractional order accumulation. - Lifeng Wu 001; Sifeng Liu; Ligen Yao; Shuli Yan; Ding-Lin Liu (Commun. Nonlinear Sci. Numer. Simul., 2013)

Non-homogenous discrete grey model with fractional-order accumulation. - Li-Feng Wu 001; Sifeng Liu; Wei Cui; Ding-Lin Liu; Tian-Xiang Yao (Neural Comput. Appl., 2014)