Varun Gupta and  Ankit Pandey,  Crude Oil Price Prediction Using LSTM Networks.   journal   = {International Journal of Computer and Information Engineering}, [online]. World Academy of Science, Engineering and Technology.
    April 2018, vol. 135(3). 226 - 230
    [viewed 20 October 2019]. Available from: https://publications.waset.org/pdf/10008992.