Vasilii V. Ananev,  Cuban Shelf Results of Exploration and Petroleum Potential.   journal   = {International Journal of Geological and Environmental Engineering}, [online]. World Academy of Science, Engineering and Technology.
    September 2016, vol. 119(11). 1037 - 1041
    [viewed 18 November 2019]. Available from: https://publications.waset.org/pdf/10005736.