Gene F. Franklin (July 25, 1927 – August 9, 2012) was an American electrical engineer and control theorist known for his pioneering work towards the advancement of the control systems engineering – a subfield of electrical engineering. Most of his work on control theory was adapted immediately into NASA's U.S. space program, most famously in the control systems for the Apollo missions to the Moon in 1960s–1970s. He is also noted for his authorship of influential texts on the control system, most notably, Feedback Control of Dynamic Systems, which has been translated into numerous of languages and has received literary prizes as the best book in the discipline of controls. Source: Wikipedia (en)