Shuo Wang Wenwei Yue Yue Chen Xingyi Ji Xinyang Chen Yaokai Jin Cooperative Learning with Difference Reward in Large-Scale Traffic Signal Control. 2307-2312 2022 ITSC https://doi.org/10.1109/ITSC55140.2022.9922382 conf/itsc/2022 db/conf/itsc/itsc2022.html#WangYCJCJ22