Nadiia M. Tymkiv . Author's articles Vol. 5, No. 2, 2019. Role of staff in ensuring environmental safety in the petroleum industry Vol. 3, No. 2, 2017 Interdisciplinary approach in professional training for future petroleum engineers Vol. 3, No. 1, 2017 Improving the quality of future petroleum engineers training in the context of the internationalization of the labor market