%0 Journal Article %T Parametric model of electric machines based on exponential Fourier approximations of magnetic air gap flux density and inductance %A Borchardt, Norman %A Kasper, Roland %J COMPEL: The International Journal for Computation and Mathematics in Electrical and Electronic Engineering %V 37 %N 1 %P 520-535 %@ 0332-1649 %D 2018-01-02 %I Emerald Group Publishing Limited %~ DeepDyve