@article{HSl08,
AUTHOR = {Hochstenbach, Michiel E. and Sleijpen, Gerard L. G.},
TITLE = {Harmonic and refined extraction methods for the polynomial eigenvalue problem},
JOURNAL = {Numer. Linear Algebra Appl.},
FJOURNAL = {Numerical Linear Algebra with Applications},
VOLUME = {15},
YEAR = {2008},
NUMBER = {1},
PAGES = {35--54},
}