Vrečko Igor, in Matjaž Mulej. „Mastering Systems Strategic Crises to Prevent Business Crises“. Naše gospodarstvo/Our economy 58, no. 5-6 (avgust 4, 2012): 3-13. Pridobljeno april 11, 2025. https://journals.um.si/index.php/oe/article/view/2320.