- Advanced Measurement Techniques for OFDM- and MIMO-based Radio Systems: Demystifying WLAN and WiMAX Testing. 2009 Keithley Instruments, Inc.
https://www.keithley.de/knowledgecenter/knowledgecenter_pdf/RFHandbook_1.pdf
https://www.keithley.de/knowledgecenter/knowledgecenter_pdf/RFHandbook_1.pdf