@article{GDZPPN001182617,
title = {Duality Estimates for the Numerical Solution of Integral Equations.},
journal = {Numerische Mathematik},
volume = {56},
year = {1989},
pages = {339-354},
zbl = {0663.65141},
url = {http://dml.mathdoc.fr/item/GDZPPN001182617}
}
Costabel, Martin; Stephan, Ernst P. Duality Estimates for the Numerical Solution of Integral Equations.. Numerische Mathematik, Tome 56 (1989) pp. 339-354. http://gdmltest.u-ga.fr/item/GDZPPN001182617/