00848nam a2200205Ia 4500003000900000008004100009020001800050040001600068080002300084111009100107245025100198260004800449300001600497490002700513650001400540650002500554650001200579700002600591700002500617IN-BaIIA211028s9999    xx            000 0 eng d  a0-521-85196-3  cIIA Library  a082.2:52bIAU-S225  aSymposium of the International Astronomical Unionn225thcSwitzerlandd2004 July 19-23 0aImpact of gravitational lensing on cosmologybproceedings of IAU symposium 225th held at Ecole Polytechnique Federale De Lausanne, Switzerland, 19-23 july 2004cedited by Yannick Mellier and Georges Meylan                                           aCambridgebCambridge University Pressc2005  axxii, 448p.  aIAU symposium; no. 225  aCosmology  aGravitational lenses  aQuasars  aMellier, Yannick, ed.  aMeylan, Georges, ed.