@ARTICLE {29577,
author={P.  Bota and C.  Wang and A. L. N. Fred and H. Silva},
doi={10.1109/ACCESS.2019.2944001},
journal={IEEE Access},
title={A Review, Current Challenges, and Future Possibilities on Emotion Recognition Using Machine Learning and Physiological Signals},
year={2019},
month={September},
volume={7},
number={1},
pages={140990-141020},
ISSN={2169-3536}
}