00369nam a2200145Ia 4500020001500000082001700015100001700032245005800049260003500107300002900142490003500171500000500206700000500211856000700216  a3764366478  a514bL849.IT  aLong, Yiming  aIndex theory for symplectic paths with applicationsb  aBaselbBirkhauser Verlagc2002  axxiv, 380p. Bibl. Index.  aProgress in Mathematics v 207  a  a  df