Idais, Osama http://orcid.org/0000-0002-2268-1551
Funding for this research was provided by:
Landesgraduiertenförderung Sachsen-Anhalt (GradFVO (GVBl. LSA 1992, 402))
Article History
Received: 5 June 2019
Revised: 4 November 2019
First Online: 7 February 2020