Abd El Ghaffar, T., El-Wakeel, A., Eliwa, A., Mostafa, R. (2011). 'Optimal Position Control of Permanent Magnet DC Motor (PMDC)', International Conference on Aerospace Sciences and Aviation Technology, 14(AEROSPACE SCIENCES & AVIATION TECHNOLOGY, ASAT - 14 – May 24 - 26, 2011), pp. 1-10. doi: 10.21608/asat.2011.23430