Hague, James (February 10, 2010). "Optimizing for Fan Noise". Programming in the Twenty-First Century. Archived from the original on September 14, 2017. Retrieved August 20, 2017.
Hague, James (February 10, 2010). "Optimizing for Fan Noise". Programming in the Twenty-First Century. Archived from the original on September 14, 2017. Retrieved August 20, 2017.