G. D’Addio, P. Ferrari, A. Mariscotti, P. Pozzobon, “Integrated Modeling of Audiofrequency Track Circuit,” International Conference and Exhibition on Electromagnetic Compatibility, EMC York 99.(Conf. Publ.), no. 464, 1999.

Y. Gruere, B. Moroz, “TVM 430 – A Modular and Flexibel ATC System,” Compagne de Signaux des D’Equipment Electronique, IEEE Xplore.

ESCORT, “IST 1999-20006, D2011 report STATE OF ART,” Information Society Technologies (IST, 5th Framework Programme for RTD&D, 1998-2002.

Ali Zamani, Ahmad Mirabadi, “Optimization of Sensor Orientation in Railway Wheel Detector, Using Kriging Method,” Journal of Electromagnetic Analysis and Applications, vol. 3, no. 12, pp. 529-536, 2011.

Yanlong Liu, Weiming Tong, Xianji Jin, and Zhongwei Li, “Magnetic Circuit Modeling and Analysis of Unilateral Axle-Counting Sensor,” IEEE Access, vol. 6, pp. 51834- 51842, 2018.

Jin Yang, Gui-yun Tian, Yun-lai Gao, “High Reliable Unilateral Inductive Axle Counting Sensor System and Applications,” IEEE Far East NDT New Technology & Application Forum (FENDT), 2016.

Chu-liang Wei, Chun-cheung Lai, et al., “A Fiber Bragg Grating Sensor System for Train Axle Counting,” IEEE Sensors Journal, vol. 10, no. 12, pp. 1905-1912, 2010.

Shogo Yasukawa, Naoko Takagi, Tamio Okutanii, et al., “Design Optimization of Magnetic Sensor for Train Detection,” IEEE Transactions on Magnetics, vol. 51, no. 3, 2015.

Valery I. Rudnev, “A common misassumption in induction hardening,” Heat Treating Progress, 2004.

Tong, W., Liu, Y., Jin, X., Li, Z., and Guan, J., “Design optimization of key components’ spatial position of unilateral axle counting sensor,” Sensor Review, vol. 38, no. 3, pp. 261- 268, 2018.

Slobodan Babic, Frédéric Sirois, et al., “Mutual Inductance Calculation Between Circular Filaments Arbitrarily Positioned in Space:Alternative to Grover’s Formula,” IEEE Transactions on Magnetics, vol. 46, no. 9, pp. 3591-3600, 2010.

Xian Zhang, Hao Meng, Bin Wei, Songcen Wang, Qingxin Yang, “Mutual inductance calculation for coils with misalignment in wireless power transfer,” The 14th IET International Conference on AC and DC Power Transmission, 2018.