Funding for this research was provided by:
Eesti Teadusagentuur (IUT34-19)
Estonian Ministry of Education and Research (KOGU-HUMB)
Ettevõtluse Arendamise Sihtasutus (EU48695)
Article History
Received: 4 February 2019
Accepted: 7 April 2019
First Online: 16 April 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.