Mokhtar, A. S. N., M. B. I. Reaz, M. Marufuzzaman, and M. A. M. Ali. “Hardware Implementation of A High Speed Inverse Park Transformation Using CORDIC and PLL for FOC Brushless Servo Drive”. Elektronika Ir Elektrotechnika, vol. 19, no. 3, Feb. 2013, pp. 23-26, doi:10.5755/j01.eee.19.3.1267.