Analytic and experimental analysis of magnetic force equations - Gama, Sergio; Ferreira, Lucas Diego Rodrigues; Bessa, Carlos Vinícius Xavier; Horikawa, Oswaldo; Coelho, Adelino de Aguiar; Gandra, Flávio César Guimarães; Araújo, Raul; Egolf, Peter W. (IEEE Transactions on Magnetics, 2016)