Eliseev, S., Böhm, C., Beck, D., Blaum, K., Breitenfeldt, M., Fedosseev, V. N., et al. (2010). Direct mass measurements of 194Hg and 194Au: A new route to the neutrino mass determination? Physics Letters B, 693(4), 426-429. doi:10.1016/j.physletb.2010.08.071.