[1] Han D G, Larson D R. Frames, bases and group representations. Memoirs Amer Math Soc, 2000, 147

[2] Christensen O. Frame perturbations. Proc Amer Math Soc, 1995, 123(4): 1217--1220

[3] Cazassa P G, Christensen O. Perturbation of operators and applications to frame theorey. Jour Fourier Anal and Appls, 1997, 3(5): 543--557

[4]Kaiser G. A Friendly Guide to Wavelets. Boston: Birkhäuser, 1994

[5] Yao X Y, Du H K. Some applications of orthogonal projections in generalized orames. Journal of Mathematical Research and Exposition, 2006, 26(2): 227--232

[6] Frank M, Larson D R. Frames in Hilbert C*-modules and C*-algebras. J Operator Theory, 2002, 48:  273--314

[7] Lance E C. Hilbert C*-Modules. London: Cambridge University Press, 1995

[8] Guo M Z, Meng B, Cao X H. Operator-valued free entropy and modular frames. Methods and Applications of Analysis, 2004, 11(3): 331--344

[9] Lance E C. Unitary operators on Hilbert C*-module. Bull London Math Soc, 1994, 26(4): 363--366