JUHÁSZ, János; DR. BÁNYAI, Tamás. UNDERSTANDING THE PURCHASING PORTFOLIO MODEL – A JUST-IN-SEQUENCE APPROACH INCREASING MANUFACTURING EFFICIENCY. Journal of Applied Engineering Science, [S. l.], v. 19, n. 4, p. 926–933, 2021. DOI: 10.5937/jaes0-30742. Dostupno na: https://asistent.ceon.rs/index.php/jaes/article/view/30742. Pristupljeno: 12 jul. 2026.