00335nam a2200121Ia 4500082001600000100002200016245007800038260003400116300001400150490003900164500000500203700000500208  a514bK86.VF  aKoschorke, Ulrich  aVector fields and other vector bundle morphisms; a singularity approachb  aBerlinbSpringer-Verlagc1981  aiv, 304p.  aLecture notes in Mathematicsv 847  a  a