00447nam a2200181Ia 4500003000400000005001700004008004100021020001300062040000700075041000800082082001800090100002500108245004200133260004400175300001500219365001400234650001700248OSt20230504093338.0210423s1996    xx            000 0 und d  a19084675  cAL  aeng  a574.1921 HECS  aHECHT (Sidney M),Ed.  aBio organic chemistry: nucleic acids.  aNew YorkbOxford University Pressc1996  aix,500bHB  b1995cINR  aBiochemistry