@article{GDZPPN001175009, title = {Error Bounds and Estimates for Eigenvalues of Integral Equations. II.}, journal = {Numerische Mathematik}, volume = {33}, year = {1979}, pages = {139-146}, zbl = {0387.65078}, url = {http://dml.mathdoc.fr/item/GDZPPN001175009} }
Spence, A. Error Bounds and Estimates for Eigenvalues of Integral Equations. II.. Numerische Mathematik, Tome 33 (1979) pp. 139-146. http://gdmltest.u-ga.fr/item/GDZPPN001175009/