1. 1. Barron RF Cryogenic treatment of metal to improve wear resistance, Cryogenics 22(5) (1982) 409- 413.
   2. Molinari A, Pelizerzi S, Straffelini G, Stiansy KH Effect of deep cryogenic treatment on the mechanical properties of tool steels and material process technology 118(3): (2001), 350-355.
   3. Mohanlal D, Rangnarayanum S Kalanidi A cryogenic treatment to augment wear resistance of tool and die steels. Cryogenics 41 (3): (2001), 149-155.
   4. Seah K.W.H, Rahman.M, Yong K.H, Performance evaluation of Cryo-treated Tungsten carbide cutting tool inserts, Proceedings, Institute of Mechanical Engineering, part B, Journal of Engineering manufacture, Vol.217, 2003, pp 29-43.
   5. Jiang Yong, Chen Ding, Effect of cryogenic treatment on WC–Co cemented carbides. Materials Science and Engineering A 528 (2011), 1735–1739.
   6.  Jagdev Singh, Simranpreet Singh Gill, Harpreet Singh, Rupinder Singh, Investigation on wear behavior of cryogenically treated TiAlN coated tungsten carbide inserts in turning, International Journal of Machine Tools and Manufacture, 51, 2011, pp 25–33.