00277nam a2200109Ia 4500008004100000082001800041100001200059245002800071260003200099300001100131650002500142240817s9999    xx            000 0 und d  a547.192 c20 E  aCarl F. 0aEnzymes and metabelisms  c1956a Amsterdamb Elsevier  a287 p.  a Organic - Chemistry