00305nam a2200121Ia 4500020001500000082001800015100002300033245003600056260005200092300002900144500000500173700000500178  a0821837494  a514bSc423.WW  aScorpan, Alexandru  aThe wild world of 4-manifoldsb  aProvidencebAmerican Mathematical Societyc2005  axvii, 609p. Bibl. Index.  a  a