Charles Quesenberry Quesenberry, C. P. (2000). Controversies and contradictions in statistical process control - Discussion. Journal of Quality Technology, 32(4), 373–374. Quesenberry, C. P. (2000). Statistical process control geometric Q-chart for nosocomial infection surveillance. AMERICAN JOURNAL OF INFECTION CONTROL, 28(4), 314–320. https://doi.org/10.1067/mic.2000.106277 Quesenberry, C. P. (1999). Statistical gymnastics, revisited. Quality Progress, 32(2), 89–93. Quesenberry, C. P. (1998). Statistical gymnastics. Quality Progress, 31(9), 77–79. Quesenberry, C. P. (1997). Knowledge-based vs. rule-based SPC. Automotive Excellence, 3(3). Quesenberry, C. P. (1997). SPC methods for quality improvement. New York, NY: Wiley.