@book{cullum2002lanczos,
  author = {Cullum, J.K. and Willoughby, R.A.},
  interhash = {82c29b42b778abfb29f21caa940fc1f7},
  intrahash = {2966d91a1166afb969cdffb879d6f305},
  publisher = {Society for Industrial Mathematics},
  title = {{Lanczos algorithms for large symmetric eigenvalue computations: Documentaion and Listings Original Lanczos Codes}},
  url = {http://scholar.google.de/scholar.bib?q=info:zshJq2GVHO8J:scholar.google.com/&output=citation&hl=de&ct=citation&cd=0},
  year = 2002
}

@article{paige:197,
  author = {Paige, C. C.},
  doi = {10.1137/0711019},
  interhash = {e48832265f0709fd9f2ace01b30c784f},
  intrahash = {b4613d688980df604dca04f8dc84d054},
  journal = {SIAM Journal on Numerical Analysis},
  number = 1,
  pages = {197-209},
  publisher = {SIAM},
  title = {Bidiagonalization of Matrices and Solution of Linear Equations},
  url = {http://link.aip.org/link/?SNA/11/197/1},
  volume = 11,
  year = 1974
}