Veselinov, D.; Koeva, V.; Yankova, R.; Rusev, I.; Rusev, I.; Skulev , H. Microstructure, Microhardness and Wear Behavior of TiN-Based Surface Layers Formed on Commercially Pure Titanium Grades 2 and 4 by Laser Processing. amm 2026, 71, 693-700.