1. Stefanescu D-P., Introduction to the mature natural gas reservoir rehabilitation - Theory and case studies (Editura Universitatii Lucian Blaga, Sibiu, 2012).
2. Sabri H., Rahim A., et al., Proceedings of the 26th International Business Information Management Association (IBIMA) Conference, (Madrid, Spain, 2015)
3. Badiru A.B., Osisanya S.O., Project management for the oil and gas industry (CRC Press, Boca Raton, 2012).
4. https://www.triple-eee.com/news.html (accessed 12.02.3019)