pid type title authors mentors source_title published_date url doi isbn issn eissn fer:11073 dissertation "Convex polar second-order Taylor approximation of AC optimal power flows" "Šepetanc, Karlo" fer:4095 thesis "Model optimalnog pogona stanice za zamjenu baterija električnih vozila" "Šepetanc, Karlo" fer:2110 thesis "Modeliranje luka u visokonaponskim prekidačima" "Šepetanc, Karlo"