The rolling contact fatigue of PVD coated spur gearsMichalczewski, Remigiusz; Piekoszewski, Witold; Szczerek, Marian; Tuszynski, Waldemar; Antonov, MaksimEngineering materials and tribology2013 / p. 77-82 https://www.researchgate.net/publication/258178620_The_Rolling_Contact_Fatigue_of_PVD_Coated_Spur_Gears