Applications of Free Space Optics for Broadband Access. - Erich Leitgeb; Michael Gebhart; Ulla Birnbacher; Sajid Sheikh Muhammad; Christoph Chlestil (OpNeTec, 2004)

Active load modulation for contactless near-field communication. - Michael Gebhart; Markus Wobak; Erich Merlin; Christoph Chlestil (RFID-TA, 2012)