1. Ph.D. Candidate, Laboratory for Aeronautics, Univ. of Ljubljana, Aškerčeva 6, 1000 Ljubljana, Slovenia (corresponding author).
2. Assistant Professor, Laboratory for Non-Linear Mechanics, Univ. of Ljubljana, Aškerčeva 6, 1000 Ljubljana, Slovenia.
3. Associate Professor, Laboratory for Aeronautics, Univ. of Ljubljana, Aškerčeva 6, 1000 Ljubljana, Slovenia.
4. Professor, Deputy Head of Aerospace and Aviation, School of Aerospace, Mechanical and Manufacturing Engineering, RMIT Univ., Bundoora, VIC 3083, Australia.