Žilina, Olga
Koltšina, Marina
Raid, Raivo
Kurg, Ants
Tõnisson, Neeme
Salumets, Andres
Funding for this research was provided by:
Estonian Ministry of Education and Research (SF0180027s10, SF0180142s08, IUT 34-16)
EU-FP7 Eurostars program (EU41564)
EU-FP7 IAPP project (EU324509)
European Regional Development Fund (FP7 278913, FP7 306031, FP7 313010)
Article History
Received: 5 March 2015
Accepted: 9 September 2015
First Online: 16 September 2015