Alekseevich, Yakushev Anatoly, and Lysenko Yulia Valentinovna. “Economic-Mathematical Modeling of the Enterprise Solvency Risk Assessment”. International Journal of Economics and Financial Issues, vol. 8, no. 6, Nov. 2018, pp. 157-66, https://econjournals.com.tr/index.php/ijefi/article/view/7178.