Multiresolution Analysis and Haar Wavelets on the Product of Heisenberg Group. - Peizhu Xie; Jianxun He (Int. J. Wavelets Multiresolution Inf. Process., 2009)

Commutators with Lipschitz Functions and Nonintegral Operators. - Peizhu Xie; Ruming Gong (J. Appl. Math., 2013)