00294nam a2200121Ia 45000030006000000080041000060400015000471000015000622450034000772600032001115460012001430050017001550STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aKeer, H.V.  aPrinciples of the solid state  bNew age internationalc1999  aEnglish20220125170135.0