1. Graduate Student, Faculty of Civil and Geodetic Engineering, Univ. of Ljubljana, Jamova 2, 1000 Ljubljana, Slovenia.
2. Professor, Faculty of Civil and Geodetic Engineering, Univ. of Ljubljana, Jamova 2, 1000 Ljubljana, Slovenia.
3. Associate Professor, Faculty of Civil and Geodetic Engineering, Univ. of Ljubljana, Jamova 2, 1000 Ljubljana, Slovenia.