@article{Liu_2018,
title={Predictability of crude oil prices: An investor perspective},
volume={75},
ISSN={0140-9883},
url={http://dx.doi.org/10.1016/j.eneco.2018.08.010},
DOI={10.1016/j.eneco.2018.08.010},
journal={Energy Economics},
publisher={Elsevier BV},
author={Liu,
Li and Wang,
Yudong and Yang,
Li},
year={2018},
month=sep,
pages={193–205} }