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@article{NUMA_1982__39_132782, author = {A.J. Geurts}, title = {A {Contribution} to the {Theory} of {Condition.}}, journal = {Numerische Mathematik}, pages = {85--96}, publisher = {mathdoc}, volume = {39}, year = {1982}, zbl = {0465.65025}, url = {http://geodesic.mathdoc.fr/item/NUMA_1982__39_132782/} }
A.J. Geurts. A Contribution to the Theory of Condition.. Numerische Mathematik, Tome 39 (1982), pp. 85-96. http://geodesic.mathdoc.fr/item/NUMA_1982__39_132782/