00444nam a2200169Ia 4500008004100000020001500041082001800056100002000074245003100094260004000125300000800165650001800173650001800191653003300209653001200242700002000254170901s1973    xx            000 0 und d  a0471981508  a574.193bZ-3S  aZeffren, Eugene 0aStudy of Enzyme Mechanisms  aNew YorkbJohn Wiley and Sonsc1973  a284  aLife sciences  aPure Sciences  aChemical reactions mechanism  aEnzymes  aHall, Philip L.