1. Associate Professor, Dept. of Mechanics, Tallinn Univ. of Technology, Ehitajate tee 5, 19086 Tallinn, Estonia (corresponding author).
2. Teaching Assistant, Dept. of Mechanics, Tallinn Univ. of Technology, Tallinn, Estonia.
3. Professor, Dept. of Mechanics, Tallinn Univ. of Technology, Tallinn, Estonia.
4. Litostroj Power d.o.o., Litostrojska 50, 1000 Ljubljana, Slovenia.
5. Litostroj Power d.o.o., Ljubljana, Slovenia.
6. Dept. of Mathematics and Computer Science, Eindhoven Univ. of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands.
7. Assistant Professor, Dept. of Mathematics and Computer Science, Eindhoven Univ. of Technology, Eindhoven, The Netherlands.
8. Senior Lecturer, School of Mechanical and Systems Engineering, Newcastle Univ., Newcastle upon Tyne NE1 7RU, UK.
9. Deltares, P.O. Box 177, 2600 MH Delft, The Netherlands.