@article{yoon_kim_park_park_2017, 
  title={Design of a Tubular Permanent Magnet Actuator for Active Lateral Secondary Suspension of a Railway Vehicle}, 
  DOI={10.3390/app7020152}, 
  publisher={MDPI AG}, 
  author={Yoon and Kim and Park and Park}, 
  year={2017}, 
  month={Feb}
  }