00269nam a2200121Ia 45000030006000000080041000060400015000471000020000622450027000822600009001095460012001180050017001300STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aGuschibauer, W.  aNucleic acid structure  c1976  aEnglish20220125170341.0