Freitag, C.
Kononenko, T. V.
Weber, R.
Konov, V. I.
Graf, T.
Funding for this research was provided by:
Deutsche Forschungsgemeinschaft (GR 3172/17-1)
Russian Foundation for Basic Research (15-025-91347)
Article History
Received: 4 February 2018
Accepted: 1 June 2018
First Online: 8 June 2018