@article{GDZPPN00116614X,
title = {On the Convergence of the Classical Jacobi Method for Real Symmetric Matrices with Non-Distinct Eigenvalues.},
journal = {Numerische Mathematik},
volume = {9},
year = {1966},
pages = {11-18},
zbl = {0229.65037},
url = {http://dml.mathdoc.fr/item/GDZPPN00116614X}
}
KEMPEN, H.P.M. van. On the Convergence of the Classical Jacobi Method for Real Symmetric Matrices with Non-Distinct Eigenvalues.. Numerische Mathematik, Tome 9 (1966) pp. 11-18. http://gdmltest.u-ga.fr/item/GDZPPN00116614X/