@article{GDZPPN001178660,
title = {Numerical Error Bounds for Fourth Order Boundary Value Problems, Simultaneous Estimation of u(x) and u"(x).},
journal = {Numerische Mathematik},
volume = {44},
year = {1984},
pages = {233-246},
zbl = {0536.34004},
url = {http://dml.mathdoc.fr/item/GDZPPN001178660}
}
Schröder, Johann. Numerical Error Bounds for Fourth Order Boundary Value Problems, Simultaneous Estimation of u(x) and u"(x).. Numerische Mathematik, Tome 44 (1984) pp. 233-246. http://gdmltest.u-ga.fr/item/GDZPPN001178660/