Contact Assoc. Prof. Tzvetelin Gueorguiev
Technical University of Gabrovo
Faculty of Mechanical and Precision Engineering,
Department of Mechanical and Precision Engineering
4 Hadzhi Dimitar Street, Office 2403
Gabrovo
BULGARIA
Faculty of Mechanical and Precision Engineering,
Department of Mechanical and Precision Engineering
4 Hadzhi Dimitar Street, Office 2403
Gabrovo
BULGARIA