Gaafar, Mahmoud A. https://orcid.org/0000-0001-5887-5772
Baba, Toshihiko
Eich, Manfred
Petrov, Alexander Yu. https://orcid.org/0000-0002-9213-9645
Funding for this research was provided by:
Deutsche Forschungsgemeinschaft (392102174)
Article History
Received: 9 April 2019
Accepted: 17 July 2019
First Online: 16 September 2019
Competing interests
: The authors declare no competing interests.