Free Methods of Information Technologies Application to Improve the Competence of the Employees as a Mechanism to Ensure Safe Operation of Oil and Gas Fields Ishkildin R.R., Korotchenko A.Yu., Dikamov D.V., Murzagalin A.T., Chetin D.A., Voronova Yu.A. DOI: 10.24000/0409-2961-2019-2-76-83 Year: 2019 Issue num: 2 more