Krügener, K.
Sommer, S.
Stübling, E.
Jachim, R.
Koch, M.
Viöl, W.
Funding for this research was provided by:
Niedersächsische Ministerium für Wissenschaft und Kultur
Article History
Received: 4 February 2019
Accepted: 13 May 2019
First Online: 6 June 2019