Geddes, L.A. (Feb–Mar 1996). "Looking back: How measuring electric current has improved through the ages". IEEE Potentials. 15: 40–42. doi:10.1109/MP.1996.481376. S2CID11392090.
Geddes, L.A. (Feb–Mar 1996). "Looking back: How measuring electric current has improved through the ages". IEEE Potentials. 15: 40–42. doi:10.1109/MP.1996.481376. S2CID11392090.