1. Zeidler, E., Nonlinear functional analysis and its applications IV, New York-Berlin:Springer-Verlag, 1988.
2. Abraham, R, Marsden, J. E., Ratiu, T., Manifolds, Tensor Analysis and Application, London-Amsterdam-Donmills-On-taro-Sydney-Tokyo: Springer-Verlag, 1983.
3. Berger, M. S., Non-Linearity Functional Analysis, Now York: Academic Press, 1977.
4. Ma Jipu, (1.2) inverses of operators between Banach spaces and local conjugacy theorem, Chinese Annals of Math. B, 1999, 20(1):57.
5. Nashed, M. Z., Generalized Inverse and Application, New York-San Francisco-London:Academic Press, 1976.