Dzuba, V. A.
Flambaum, V. V.
Safronova, M. S.
Porsev, S. G.
Pruttivarasin, T.
Hohensee, M. A.
Häffner, H.
Article History
Received: 21 July 2015
Accepted: 19 November 2015
First Online: 4 January 2016
Competing interests
: The authors declare no competing financial interests.