@article { Guarracino2005IJPAM,
  author =      "Guarracino, M.R. and Perla, F. and Zanetti, P.",
  title =       "A Parallel Computational Kernel For Sparse Nonsymmetric Eigenvalue Problems On Multicomputers",
  journal =     "International Journal of Pure and Applied Mathematics",
  volume =      "22",
  number =      "2",
  pages =       "269--281",
  year =        "2005"
}