1. C. Bacuta, J. H. Bramble, J. Pasciak. New interpolation results and applications to finite element methods for elliptic boundary value problems. To appear.
2. C.Bacuta, J. H. Bramble and J. Pasciak. Using finite element tools in proving shift theorems for elliptic boundary value problems. To appear in “Numerical Linear Algebra with Applications”..
3. C. Bennett and R. Sharpley. Interpolation of Operators. Academic Press, New-York, 1988.
4. N. Bleistein and R. Handelsman. Asymptotic expansions of integrals. Holt, Rinehart and Winston, New York, 1975.
5. S. Brenner and L.R. Scott. The Mathematical Theory of Finite Element Methods. Springer-Verlag, New York, 1994.