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2. Equivalence between Ampere and Grassmann's forces
3. Assis, A. K. T., and J. P. M. C. Chaib. 2015. Ampère’s electrodynamics: Analysis of the meaning and evolution of ampère’s force between current elements, together with a complete translation of his masterpiece: Theory of electrodynamic phenomena, uniquely deduced from experience. Montreal: C. Roy Keys Inc.
4. Resolving the paradox of unipolar induction: new experimental evidence on the influence of the test circuit
5. Fukai, J. 2003. A promenade along electrodynamics. Pueblo West: Vales Lake Pub Llc.