00414nam a2200157Ia 450000100060000000800410000602000180004704000130006508200190007810000220009724500480011926000500016730000110021754600070022865000210023547060140429s9999    xx            000 0 und d  a9780486466705  cPK-LaUMT  a 512.74bCAS-R  aCassels, J. W. S.  aRational quadratic formscCassels, J. W. S.  aNew York,USA:bDover Publications, Inc,c2008  a413 p.  aEN  aForms, quadratic