00341nam a2200133Ia 4500008004100000041000800041082002000049100001500069245005600084260002800140300000800168365001600176700001500192230718s9999    xx            000 0 und d  aeng  a621.381'52bTYA  aTyagi M.S.  aIntroduction To Semiconductor Materials And Devices  c1991bJohn Wiley & Sons  a669  cRs.b501.95  aTyagi M.S.