John Petrich, W7FU, and Tom McDermott, N5EG, “Digital Signal Processing and GNU Radio Companion”, Part 1, QEX, July/August 2014, pp 41-46: DSP and GNU Radio Companion – Petrich and McDermott
John Petrich, W7FU, and Tom McDermott, N5EG, “Digital Signal Processing (DSP) Projects”, Part 2, QEX, September/October 2014, pp 25-30: DSP Projects – GNU Radio and GRC Functionality – Petrich and McDermott