W.-D. Lee, D.-Y. Lee, M.-S. Jeong, H. Kim, and D.-W. Kang, “Study on Rotor Position Sensing Method using Inductance Displacement Sensor”, IJET, vol. 7, no. 4.39, pp. 510–512, Dec. 2018, doi: 10.14419/ijet.v7i4.39.24365.