Helml, W.
Maier, A. R.
Schweinberger, W.
Grguraš, I.
Radcliffe, P.
Doumy, G.
Roedig, C.
Gagnon, J. http://orcid.org/0000-0001-9133-9541
Messerschmidt, M.
Schorb, S.
Bostedt, C.
Grüner, F.
DiMauro, L. F.
Cubaynes, D.
Bozek, J. D.
Tschentscher, Th.
Costello, J. T.
Meyer, M.
Coffee, R.
Düsterer, S.
Cavalieri, A. L.
Kienberger, R.
Article History
Received: 31 October 2013
Accepted: 14 October 2014
First Online: 24 November 2014
Competing interests
: The authors declare no competing financial interests.