Fyk, M., Biletskyi, V., Abbood, M., Al-Sutan, M., Varavina, O., Shapchenko, Y., Yatskevich, O., & Fyk, I. (2018). Technological and economic indicators evaluation in innovation process of oil and gas fielde development. Skhid, (2(154), 64–70. https://doi.org/10.21847/1728-9343.2018.2(154).132813