Item deposited via Symplectic Elements by user: MS Hoa Dinh HR Feed Proprietary ID: E5016137 EmailHoa.Dinh@vu.edu.au ---------- Elements publication ID: 487999. "FACTA UNIVERSITATIS, Series Mathematics and Informatics is an Open Access Journal in accordance with the Berlin Declaration. All articles can be downloaded free of charge for personal, educational and scientific purposes (Creative Commons licence CC BY-NC-ND). This journal provides immediate open access to its content on the principle that making research freely available to the public supports a greater global exchange of knowledge." - from journal Open Access Policy http://casopisi.junis.ni.ac.rs/index.php/FUMathInf/about/editorialPolicies#focusAndScope - HD 5/1/24