@ARTICLE{
author={Kovacevic Andjelka B,Yi Tignfeng,Dai Xinyu,Yang Xing,Cvorovic-Hajdinjak Iva,Popovic Luka C},
year={2020},
title={Confirmed short periodic variability of subparsec supermassive binary black hole candidate Mrk 231},
journal={MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY},
volume={494},
number={3},
pages={4069-4076},
document_type={Article},
}