1. N. Aronszajn, Theory of reproducing kernels, Trans. Amer. Math. Soc., 68, 337–404, 1950.
2. P. L. Butzer and G. Nasri-Roudsari, Kramer's sampling theorem in signal analysis and its role in mathematics, in Image Processing: Mathematical Methods and Applications, Oxford University Press, Oxford, 1994.
3. W. N. Everitt and G. Nasri-Roudsari, Interpolation and sampling theories, and linear ordinary boundary value problems, In Sampling Theory and Signal Analysis II, J. R. Higgins and R. Stens, editors., 96–129, Oxford University Press, Oxford, 1999.
4. A. G. Garcia, Orthogonal sampling formulas: a unified approach, SIAM Review, 42-3, 499–512, 2000.
5. A. G. Garcia and A. Portal, An abstract approach to non orthogonal sampling formulas, Preprint, 2000.