00349nam a2200133Ia 4500001000500000005001700005008004100022020001500063100001700078245005400095250001200149260002300161650003100184133520261006003526.0120911s9999    xx            000 0 und d  a0582441218  aSykes, Peter  aA guidebook to mechanism in organic chemistry -5e  a5th ed.  bLongmansaLongmans  aChemistry,Physical Organic