@article{abrahams-94,
  author   = {Abrahams, A.M. and Cook, G.B.},
  eprint   = {gr-qc/9405051},
  journal  = {Phys. Rev. D},
  keywords = {Black holes, Perturbation theory},
  pages    = {R2364--R2367},
  title    = {Collisions of boosted black holes: Perturbation theory prediction of gravitational radiation},
  volume   = {50},
  year     = {1994}
}

@book{chandrasekhar-83,
  address   = {Oxford},
  author    = {Chandrasekhar, S.},
  keywords  = {Black holes, Perturbation theory},
  publisher = {Clarendon Press},
  title     = {The Mathematical Theory of Black Holes},
  year      = {1983}
}

@incollection{thorne-87,
  address   = {Cambridge; New York},
  author    = {Thorne, K.S.},
  booktitle = {Three Hundred Years of Gravitation},
  editor    = {Hawking, S.W. and Israel, W.},
  keywords  = {Gravitational radiation, Gravitational wave detectors, Black holes},
  pages     = {330--458},
  publisher = {Cambridge University Press},
  title     = {Gravitational radiation},
  year      = {1987}
}

@online{aei-homepage,
  cited     = {12 October 1999},
  format    = {institutional homepage},
  keywords  = {Mathematical relativity, Numerical relativity, Quantum gravity},
  publisher = {Max Planck Institut for Gravitational Physics (Albert Einstein Institute},
  title     = {Home Page},
  url       = {http://www.aei.mpg.de}
}

@article{stergioulas-98,
  author   = {Stergioulas, N.},
  cited    = {20 August 1999},
  id       = {lrr-1998-8},
  journal  = {Living Rev. Relativity},
  keywords = {Relativistic stars, Perturbation theory},
  title    = {Rotating Stars in Relativity},
  url      = {http://www.livingreviews.org/lrr-1998-8},
  volume   = {1},
  year     = {1998}
}

@unpublished{williams-97,
  author   = {Williams, L.L.R. and Irwin, M.J.},
  format   = {submitted},
  journal  = {Mon. Not. R. Astron. Soc.},
  keywords = {Gravitational lenses},
  title    = {Angular correlations between LBQS and APM: Weak Lensing by the Large Scale Structure},
  year     = {1997}
}

@misc{friedman-98,
  author = {Friedman, J.L.},
  format = {personal communication},
  year   = {1998}
}

@proceedings{liege-93,
  address      = {Li{\`e}ge},
  editor       = {Surdej, J. and Fraipont-Caro, D. and Gosset, E. and Refsdal, S. and Remy, M.},
  keywords     = {Gravitational lenses},
  organization = {Li{\`e}ge Astrophysical Colloquium},
  publisher    = {Presses universitaires de Li{\`e}ge},
  title        = {Gravitational Lenses in the Universe, Proceedings of the 31th Li{\`e}ge Astrophysical Colloquium},
  year         = {1993}
}

@inproceedings{blandford-97,
  address    = {Cambridge; New York},
  author     = {Blandford, R. and Kundi{\'{c}}, T.},
  booktitle  = {The Extragalactic Distance Scale},
  conference = {Proceedings of the ST ScI Symposium, held in Baltimore, Maryland, May 7--10, 1996},
  editor     = {Livio, M. and Donahue, M. and Panagia, N.},
  eprint     = {astro-ph/9611229},
  keywords   = {Gravitational lenses},
  pages      = {60--75},
  publisher  = {Cambridge University Press},
  series     = {Space Telescope Science Institute Symposium Series},
  title      = {Gravitational Lensing and the Extragalactic Distance Scale},
  volume     = {10},
  year       = {1997}
}

@thesis{wambsganss-90,
  address  = {Munich},
  adsurl   = {http://adsabs.harvard.edu/abs/1990STIN...9222300W},
  author   = {Wambsganss, J.},
  format   = {phd},
  keywords = {Gravitational lenses},
  note     = {Also available as preprint MPA 550, MPI f{\"u}r Astrophysik},
  school   = {Ludwig-Maximilians-Universit{\"a}t},
  title    = {Gravitational Microlensing},
  year     = {1990}
}

@thesis{rampp-97,
  address  = {Munich},
  author   = {Rampp, M.},
  format   = {ma},
  keywords = {Numerical relativity, Neutron stars},
  school   = {Technische Universit{\"a}t},
  title    = {Berechnung des Gravitationswellensignals bei Entstehung und Verschmelzung von Neutronensternen},
  year     = {1997}
}

@techreport{lisa-96,
  address   = {Garching},
  id        = {MPQ 28},
  keywords  = {Gravitational wave detectors},
  publisher = {Max-Planck-Institut f{\"u}r Quantenoptik},
  title     = {LISA: Pre-phase A report, December 1995},
  year      = {1996}
}