Abdalla, I. I. ., T. B. . Ibrahim, and N. M. . Nor. “A Study on Different Topologies of the Tubular Linear Permanent Magnet Motor Designed for Linear Reciprocating Compressor Applications”. Applied Computational Electromagnetics Society Journal (ACES), vol. 31, no. 01, Aug. 2021, pp. 85-91, https://journals.riverpublishers.com/index.php/ACES/article/view/10275.