@article{GDZPPN001174304, title = {The Defect Correction Principle and Discretization Methods.}, journal = {Numerische Mathematik}, volume = {28}, year = {1977}, pages = {425-444}, zbl = {0362.65052}, url = {http://dml.mathdoc.fr/item/GDZPPN001174304} }
Stetter, H.J. The Defect Correction Principle and Discretization Methods.. Numerische Mathematik, Tome 28 (1977) pp. 425-444. http://gdmltest.u-ga.fr/item/GDZPPN001174304/