00324nam a2200121Ia 4500082001700000100001900017245004500036260005400081300002200135490003500157500000500192700000500197  a512bM194.LD  aMagid, Andy R.  aLectures on differential galois theoryb  aRhode IslandbAmerican Mathematical Societyc1994  axiii, 105p. Bibl.  aUniversity lecture series v 7  a  a