STOJANOVIĆ, Nenad S. A new operation on soft sets: extended symmetric difference of soft sets. Vojnotehnički glasnik / Military Technical Courier, [S. l.], v. 69, n. 4, p. 779–791, 2021. DOI: 10.5937/vojtehg69-33655. Dostupno na: https://asistent.ceon.rs/index.php/vtg/article/view/33655. Pristupljeno: 12 jul. 2026.