Funding for this research was provided by:
Bundesrepublik Deutschland, Deutscher Wetterdienst, vertreten durch den Vorstand, Deutsche Meteorologische Bibliothek
Article History
Received: 1 November 2019
Accepted: 22 April 2020
First Online: 15 May 2020
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.