Estimates for spline projections
Revue française d'automatique, informatique, recherche opérationnelle. Analyse numérique, Tome 10 (1976) no. R2, pp. 5-37. 
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     author = {Bramble, J. H. and Schatz, A. H.},
     title = {Estimates for spline projections},
     journal = {Revue fran\c{c}aise d'automatique, informatique, recherche op\'erationnelle. Analyse num\'erique},
     pages = {5--37},
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     volume = {10},
     number = {R2},
     year = {1976},
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     zbl = {0343.65045},
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     url = {http://www.numdam.org/item/M2AN_1976__10_2_5_0/}
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Bramble, J. H.; Schatz, A. H. Estimates for spline projections. Revue française d'automatique, informatique, recherche opérationnelle. Analyse numérique, Tome 10 (1976) no. R2, pp. 5-37. http://www.numdam.org/item/M2AN_1976__10_2_5_0/

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