@Article{Dongarra:1982:ASF, author = "Jack J. Dongarra", title = "{Algorithm 589}: {SICEDR}: {A FORTRAN} Subroutine for Improving the Accuracy of Computed Matrix Eigenvalues", journal = "{ACM} Transactions on Mathematical Software", volume = "8", number = "4", pages = "371--375", month = dec, year = "1982", CODEN = "ACMSCU", ISSN = "0098-3500", URL = "http://doi.acm.org/10.1145/356012.356016", keywords = "algorithms; eigensystems improvement; iterative method; matrix eigensystems", }