Batbayar, Gunsmaa http://orcid.org/0000-0003-1336-1211
Pfeiffer, Martin
von Tümpling, Wolf
Kappas, Martin
Karthe, Daniel
Funding for this research was provided by:
German ministry of education and research (BMBF grant no. 033L003A)
German Academic Exchange Service (Scholarship No. A/12/97034)