Jędryczka, C. et al. 2025. Comparative Analysis of Spatial-Time Harmonics of Radial Forces in the Multi-Phase Synchronous Reluctance Machines of Three- Six- and Nine- Phase Winding. XXVIII. Symposium Electromagnetic Phenomena in Nonlinear Circuits (EPNC 2024): Conference Proceedings. M.P. Martin Petrun et al., eds. University of Maribor Press. 61–68.