Timofeeva S. S., Timofeev S. S, and Ziyaev M. R. “ASSESSMENT OF ENVIRONMENTAL RISKS OF THE PETROLEUM SUPPLY SYSTEM”. JournalNX - A Multidisciplinary Peer Reviewed Journal, May 2021, pp. 1251-7, https://repo.journalnx.com/index.php/nx/article/view/3406.