Co-rewarding: Stable Self-supervised RL for Eliciting Reasoning in Large Language Models - Zhang, Zizhuo; ZHU, Jianing; Ge, Xinmu; Zhao, Zihua; Zhou, (Andrew) Zhanke; Li, Xuan; Feng, Xiao; Yao, Jiangchao; Han, Bo (International Conference on Learning Representations, 2026)