1. BARNHILL R. E. et WHITEMAN J. R., Error Analysis of Finite Element Methods with Triangles for Elliptic Boundary Value Problems, The mathematics of Finite Elements and Applications (J. R. Whiteman, ed.), 83-112, Acad. Press (1973).0284.65087
2. BRAMBLE J. H. et HILBERT S. R., Estimation of Linear Functionals on Sobolev Spaces with Application to Fourier Transforms and Spline Interpolation, SIAM J. Numer. Anal, 7, 112-124 (1970).2632140201.07803
3. BRAMBLE J. H. et HILBERT S. R., Bounds for a Class of Linear Functionals with Applications to Hermite Interpolation, Numer. Math., 16,362-369 (1971).1320412905240214.41405
4. CIARLET P. G. et RAVIART P. A., General Lagrange and Hermite Interpolation in R with Applications to Finite Element Methods, Arch. Rat. Mech. Anal., 46, 177-199 (1972).3369570243.41004
5. CIARLET P. G. et RAVIART P. A., Interpolation Theory over Curved Elements with Applications to Finite Element Methods, Comp. Meth. Appl. Mech. Engin., 1, 217-249 (1972).3758010261.65079