K. Leelaruedee, K. TAWEESUP, and P. VISUTTIPITUKUL, “Formation of nano-crystalline chromium-zirconium nitride (Cr-Zr-N) film coating by DC unbalanced magnetron sputtering”, J Met Mater Miner, vol. 31, no. 4, pp. 69–75, Dec. 2021.