[1]   Duffin R J,  Schaeffer A  C. A class of nonharmonic Fourier series. Trans Amer Math Soc, 1952, 72(2): 341--366

[2]  Li D F,  Yang L J. New perturbation results on frames in Hilbert spaces.  Acta Mathematica Scientia (in Chinese), 2008, 28A(3): 489--499

[3]  Christensen O.  An Introduction to Frames and Riesz Bases. Boston: Birkhäuser,  2002

[4]  Grochenig K.  Describing functions: Atomic decompositions versus frames. Monatsh Math, 1991, 112(1): 1--41

[5]  Christensen O, Heil C. Perturbations of Banach frames and atomic decompositions. Math Nachr, 1997, 185(1): 33--47

[6]   Xin J,  Zhou J Y. Peturbation and stablity of frames and atomic decmpositions for Banach spaces. Acta Mathematica Sinica (in Chinese), 2002, 45(5):1165--1170

[7]  Casazza P G,  Christensen O, Stoeva D T. Frame expansions in separable Banach spaces. J Math Anal Appl, 2005, 307(2): 710--723

[8]  Hilding S. Note on completeness theorems of Paley-Wiener type. Ann Math, 1948, 49(4): 953--955

[9]  Casazza P G, Christensen  O. Perturbation of operators and applications to frame theory. J Fourier Anal Appl, 1997, 3(5): 543--557

[10]  Casazza G,   Han D G, Larson D R. Frames for Banach spaces. In: The Functional and Harmonic Analysis of Wavelets and Frames  (Baggett L W,  Larson D R, eds.).  Contemporary Mathematics, 1999, 247: 149--182

[11]  Li  D F,   Xue M Z. Bases and Frames on Banach Space (in Chinese). Beijing: Science  Press,  2007