Validity domain of a quasi-3D multislice analytical model for synchronous axial flux machines with trapezoidal magnetsHuguette Tiegna, Yacine Amara and Georges BarakatEur. Phys. J. Appl. Phys., 70 1 (2015) 10902DOI: https://doi.org/10.1051/epjap/2015140495