Autori:
1. Cristiano Fragassa, University of Bologna, Department of Industrial Engineering, Italy
2. Carlo Santulli, School of Architecture and Design, University of Camerino, Italy
3. Ana Pavlović, University of Bologna, Department of Industrial Engineering, Italy
4. Milan Sljivic, Mašinski fakultet Univerziteta u Banjoj Luci,
Republic of Srpska, Bosnia and Herzegovina