Grafe, H.-J.
Nishimoto, S.
Iakovleva, M.
Vavilova, E.
Spillecke, L.
Alfonsov, A.
Sturza, M.-I.
Wurmehl, S.
Nojiri, H.
Rosner, H.
Richter, J.
Rößler, U. K.
Drechsler, S.-L.
Kataev, V.
Büchner, B.
Article History
Received: 22 February 2017
Accepted: 14 June 2017
First Online: 27 July 2017
Competing Interests
: The authors declare that they have no competing interests.