WASET
    Heiko Weiß and  Andreas Meister and  Christoph Ament and  Nils Dreifke,  Modeling and System Identification of a Variable Excited Linear Direct Drive.   journal   = {International Journal of Mechanical and Mechatronics Engineering}, [online]. World Academy of Science, Engineering and Technology.
    January 2017, vol. 123(3). 468 - 474
    [viewed 27 April 2024]. Available from: https://publications.waset.org/pdf/10006464.