@article{GDZPPN00117990X, title = {Thirteen Ways to Estimate Global Error.}, journal = {Numerische Mathematik}, volume = {50}, year = {1986}, pages = {1-20}, zbl = {0562.65050}, url = {http://dml.mathdoc.fr/item/GDZPPN00117990X} }
Skeel, Robert D. Thirteen Ways to Estimate Global Error.. Numerische Mathematik, Tome 50 (1986) pp. 1-20. http://gdmltest.u-ga.fr/item/GDZPPN00117990X/