00261nam a2200109Ia 4500008004100000041000800041082001400049100001600063245004700079260001800126300000700144211209s1963    xx            000 0 und d  aeng  a683.9 BED  aBEDRICH INZ  aTRVANLIVOST A BEZPECNOST VALIVYCH LOZISEK   bS N I Lc1963  a69