Characterisation of samarium and nitrogen co-doped TiO2 films prepared by chemical spray pyrolysisOja Acik, Ilona; Kiisk, Valter; Krunks, Malle; Sildos, Ilmo; Junolainen, Agne; Danilson, Mati; Mere, Arvo; Mikli, ValdekApplied surface science2012 / p. 735-741 : ill Comparative study of surface roughness and tribological behavior during running-in period of hard coatings deposited by lateral rotating cathode arcPodgurski, Vitali; Nisumaa, Reet; Adoberg, Eron; Surženkov, Andrei; Sivitski, Alina; Kulu, PriitWear2010 / p. 751-755 : ill Dependence of the friction coefficient on roughness parameters during early stage fretting of (Al,Ti)N coated surfacesPodgurski, Vitali; Adoberg, Eron; Surženkov, Andrei; Kimmari, Eduard; Viljus, Mart; Mikli, Valdek; Hartelt, M.; Wäsche, R.; Šima, M.; Kulu, PriitWear2011 / p. 853-858 : ill https://www.sciencedirect.com/science/article/abs/pii/S0043164811001815