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Sanchez, C. A.; Wood, B. M.; Green, R. G.; Liard, J. O.; Inglis, D. (2014). "A determination of Planck's constant using the NRC watt balance". Metrologia. 51 (2): S5–S14. doi:10.1088/0026-1394/51/2/S5. S2CID120813510.