00403nam a2200157Ia 450000100060000000800410000602000180004704000130006508200190007810000170009724500490011426000380016330000110020154600070021265000260021963892150109s9999    xx            000 0 und d  a9781466507722  cPK-LaUMT  a 621.32bKHA-U  aKhan, M.Nisa  aUnderstanding led illuminationcKhan, M.Nisa  aBoca Raton,USA:bCRC Press,c2014  a248 p.  aEN  aLight emitting diodes