Funding for this research was provided by:
Deutsche Forschungsgemeinschaft (RTG2010)
Russian Foundation for Basic Research (15-29-02622 ofi_m, &#x0410;&#x0410;&#x0410;&#x0410;-&#x0410;18-118031290108-6)
the Bavarian State Ministry of the Environment and Consumer Protection (KLIMAGRAD II project).
Text and Data Mining valid from 2018-08-03
Received: 12 February 2018
Accepted: 24 July 2018
First Online: 3 August 2018
: The authors declare no competing interests.