@article{ZVMMF_1966_6_3_a13,
     author = {\`E. D. Levinson},
     title = {Quadratic convergence of the {Jacobi} method in the case of multiple eigenvalues},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {556--559},
     publisher = {mathdoc},
     volume = {6},
     number = {3},
     year = {1966},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_1966_6_3_a13/}
}