Determination of e/h ratio by optical measurementsKübarsepp, Toomas; Tamre, Mart; Gran, Jarle; Monakhov, Edouard; Merimaa, M.; Werner, Lutz; Rastello, Maria Luisa29th Conference on Precision Electromagnetic Measurements, DIGEST, Rio de Janeiro, Brazil, August 24-29, 20142014 / p. 236-237 https://doi.org/10.1109/CPEM.2014.6898346 Conference proceedings at Scopus Article at Scopus