RADIĆ, Dejan. Uvodnik. Procesna tehnika, [S.l.], v. 29, n. 1, p. 4, july 2017. ISSN 2217-2319. Dostupno na: <https://izdanja.smeits.rs/index.php/procteh/article/view/2764>. Datum pristupa: 22 oct. 2019