Titchener, James G.
Gräfe, Markus
Heilmann, René
Solntsev, Alexander S.
Szameit, Alexander http://orcid.org/0000-0003-0071-6941
Sukhorukov, Andrey A. http://orcid.org/0000-0002-5116-5425
Article History
Received: 16 May 2017
Revised: 10 January 2018
Accepted: 19 January 2018
First Online: 8 March 2018
Competing interests
: The authors declare no competing financial interests.