00551nam a2200181Ia 4500082001900000100003800019245002300057260003600080300003100116490003900147500000500186690000600191700002700197952010100224964001700325921001000342999001700352  a515.9bF229.RS  aFerkas, Hershel M. and Kra, Irwin  aRiemann surfacesb  aNew YorkbSpringer-Verlagc1980  ax, 337p. Index. Bibl. Fig.  aGraduate texts in Mathematicsv 71  a  a   aKra, Irwin ; jt. auth.  00104070aISIbISId1998-09-17l0o515.9 F229.RSpDP16962r2019-02-14 00:00:00w2019-02-14yBK  abcdefg  a11723  c11723d11723