00524nam a2200181Ia 4500082001700000100001900017245006000036260003400096300001400130490003900144500000500183690000600188700000500194952009900199964001700298921001000315999001700325  a514bB344.OT  aBaues, Hans J.  aObstruction theory on homotopy classification of mapsb  aBerlinbSpringer-Verlagc1977  axi, 387p.  aLecture notes in Mathematicsv 628  a  a   a  00104070aISIbISId1998-09-15l0o514 B344.OTpDP13494r2019-02-14 00:00:00w2019-02-14yBK  abcdefg  a10898  c10898d10898