Dontchev, A. L.
Krastanov, M. I.
Veliov, V. M.
Funding for this research was provided by:
National Science Foundation Award (CMMI 1562209)
Australian Research Council (Project DP160100854)
Sofia University ”St. Kliment Ohridski” (No. 80-10-133/25.04.2018)
Austrian Science Foundation (No. P26640-N25)
Article History
Received: 19 June 2018
Accepted: 11 January 2019
First Online: 29 April 2019