1. Multichannel digital phase sensitive detection using a field programmable gate array development platform
2. Koppelman, D. (2002), ‘Verilog Notes 7 – Integer Multiply and Divide’,http://www.ece.lsu.edu/ee3755/2002/l07.html(Accessed 15 January 2010)
3. Semiconductor Components Industries, LLC. (2001), ‘3.3/5V ECL Differential Phase-Frequency Detector’, ON Semiconductor MC100LVEL40 Data Sheet, Publication Order Number MC100LVEL40/D, Rev. 5, Semiconductor Components Industries, LLC, Phoenix, AZ