1. Regulations for community noise
2. König S., Petry N., & Wagner N. G. Aeroacoustic Phenomena in High-Pressure Centrifugal Compressors—A Possible Root Cause for Impeller Failures.In Proceedings of the 38th Turbomachinery Symposium, pp. 103–121, (2009)
3. Rotating Stall and Surge
4. McKain T. F., & Holbrook G. J. Coordinates for a high performance 4: 1 pressure ratio centrifugal compressor.Lewis Research Center, NASA-23268, (1997)