@article{NUMA_1978__31_132565,
     author = {J.R. Bunch and C.P. Nielsen and D.C. Sorensen},
     title = {Rank-One  {Modification} of the  {Symmetric} {Eigenproblem.}},
     journal = {Numerische Mathematik},
     pages = {31--48},
     publisher = {mathdoc},
     volume = {31},
     year = {1978},
     zbl = {0369.65007},
     url = {http://geodesic.mathdoc.fr/item/NUMA_1978__31_132565/}
}