Гречаник, Б. В., and В. А. Лагдан. “Features of Using of Specialized Information Systems (IS) in the Management Processes of Domestic Enterprises”. Scientific Bulletin of Ivano-Frankivsk National Technical University of Oil and Gas (Series: Economics and Management in the Oil and Gas Industry), vol. 1, no. 11, Apr. 2015, pp. 73-79, https://eung.nung.edu.ua/index.php/ecom/article/view/145.