@unpublished{TUW-111826, author = {Langwieser, Robert and Scholtz, Arpad Ludwig}, title = {Radio-Frequency Components and Frontend Design for RFID Readers at 13.56 and 868 MHz}, year = {2007}, note = {invited; talk: Tutorial on 'Radio Frequency Identification Systems (RFID)', Forschungszentrum Telekommunikation Wien; 2007-10-24} }