00451nam a2200145Ia 4500020001500000082001900015100003800034245008200072260003600154300001600190490003500206500000500241700003100246700002800277  a0817640762  a510.9bEt84.UM  aEtingof, Pavel and others d eds.  aThe unity of mathematicsbin honor of the ninetieth birthday of I. M. Gelfand  aBostonbBirkhauser Verlagc2006  axxii, 631p.  aProgress in Mathematics v 244  a  aRetakh, Vladimir ; jt. ed.  aSinger, I. M. ; jt. ed.