@article{GDZPPN001171542,
title = {Galerkin Approximations for the Two Point Boundary Problem Using Continuous, Piecewise Polynomial Spaces.},
journal = {Numerische Mathematik},
volume = {22},
year = {1974},
pages = {99-110},
zbl = {0331.65051},
url = {http://dml.mathdoc.fr/item/GDZPPN001171542}
}
Douglas, J. jr.; Dupont, T. Galerkin Approximations for the Two Point Boundary Problem Using Continuous, Piecewise Polynomial Spaces.. Numerische Mathematik, Tome 22 (1974) pp. 99-110. http://gdmltest.u-ga.fr/item/GDZPPN001171542/