61.  Two highly stable inorganic-organic hybrid 3-D frameworks based on Cu–Ln incorporated polyoxometalates for selective 

dye removal and proton conduction

R.T. Zhang, H.P. Xiao, Z. Li, M. Wang, Y.F. Xie, Y.D. Ye, X.X Li,* S.T. Zheng*, CrystEngComm, 2021, 23, 2973.