Martynov, Anatolyi Fedorovich, and Dmitriy Vladimirovich Gudov. “STATE ESTIMATION OF THE INFRASTRUCTURE SECURITY OF MIDDLE AND SMALL BUSINESS”. Среднерусский вестник общественных наук, vol. 1, no. 3, Mar. 2013, pp. 229-33, https://sredneruss-vestnik.owebs.ru/article/view/28992.