A variable step size subband affine projection algorithm with dynamic selection of subband filters. - Chang Liu; Zishu He; Hefa Zhang; Hongshu Liao; Wei Xia (IEICE Electron. Express, 2011)

Independent Component Analysis Based on Fast Proximal Gradient. - Hefa Zhang; Liping Li; Wanchun Li (Circuits Syst. Signal Process., 2012)

Independent vector analysis for convolutive blind noncircular source separation. - Hefa Zhang; Liping Li; Wanchun Li (Signal Process., 2012)