• Passivation and anodic oxidation of duplex TiN coatings on stainless steelRudenja, Sergei; Pan, J.; Odnevall Wallinder, Inger; Leygraf, C.; Kulu, PriitJournal of The Electrochemical Society1999 / p. 4082-4086 https://www.researchgate.net/publication/234857934_Passivation_and_Anodic_Oxidation_of_Duplex_TiN_Coating_on_Stainless_Steel