1International Organization for Standardization, ISO 4210:1996, INTERNATIONAL STANDARD, Switzerland : INTERNATIONAL STANDARD, 1996.
2Gerretsen A, Mulder M, van Paassen M M. Comparison of position - loop, velocity - loop and force - loop Based Control Loading Architecture[ C ]//Proceedings of AIAA Modeling and Simulation Technologies Conference and Exhibit. San Francisco, CA, 2005 : 1 -18.