Doroslovacki, R Etikum 2014 - Metrology and quality in production engineering and environmental protection : proceedings. International scientific conference Etikum 2014. Novi Sad, Serbia, June 19-20, 2014. -- Novi Sad : University of Novi Sad, 2014. -- 248 p. -- ISBN : 978-86-7892-616-7. Vilotič, D.. Vukelič, Djordje