STERNAD, Marjan, 2016, Transport cost function : case of Slovenian regional rail lines. V : Management and logistics [na spletu]. Czestochowa [etc. p. 35–53. P. 35–53. [Dostopano 16 marec 2025]. Pridobljeno s: https://dk.um.si/IzpisGradiva.php?lang=slv&id=70379