00326nam a2200121Ia 4500008004100000020001500041082002000056100001600076245004100092260003100133300001400164490002600178250724b        |||||||| |||| 00| 0 eng d  a0817639438  a515.24bC748.HA  aRoss, K. A.  aHarmonic analysis and hypergroupsb/  aBoston:bBirkhauser,c1995  aiv, 249p.  aTrends in Mathematics