@Article{ authors = " Krzysztof Rokosz, Tadeusz Hryniewicz, Kornel Pietrzak, Łukasz Dudek", title = "Porous PEO Coatings on Titanium, Obtained under DC Regime, Enriched in Magnesium, Calcium, Zinc and Copper", journal = "World Scientific News", issue = "2018 / Tom 94 / Numer 2", pages = "99 - 114" }

@Article{ authors = " Krzysztof Rokosz, Tadeusz Hryniewicz, Kornel Pietrzak, Łukasz Dudek, Winfried Malorny", title = "SEM and EDS Studies of Selected Porous Coating Obtained on Titanium by Plasma Electrolytic Oxidation ", journal = "World Scientific News", issue = "2017 / Tom 70 / Numer 2", pages = "71 - 85" }