00350nam a2200145Ia 4500003000500000008004100005020001800046040001900064082000700083100001800090245004700108260002900155300000800184546001200192STCL181203s9999    xx            000 0 und d  a9781461264422  aSTCLbENcSTCL  222  aKoblitz, Neal 2aA Course in Number Theory and Cryptography  bSpringeraNew Yorkc1994  a235  aEnglish