Pfiffner, Lukas http://orcid.org/0000-0001-8045-7243
Ostermaier, Miriam
Stoeckli, Sibylle
Müller, Andreas
Funding for this research was provided by:
Dreiklang Foundation
Vontobel-Stiftung
Temperatio Foundation
Oekoenergie Fonds
Article History
Received: 10 January 2018
Accepted: 18 August 2018
First Online: 21 August 2018
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.