00260nam a2200097Ia 4500008004100000082001900041100001900060245003800079260003700117300000800154140113s9999    xx            000 0 und d  a577.15.03   L2  a"Gutfrund, H."  aThe Enzymes :Physical parinciples  a1972bWiley IntersceincecLondon  a242