A New Rough Set Based Classification Rule Generation Algorithm(RGA). - Honghai Feng; Yanyan Chen; Kaiwei Zou; Lijuan Liu; Qiannan Zhu; Zhuo Ran; Li Yao; Lijin Ji; Sai Liu (IEA/AIE (1), 2014)

A note on almost partitioned difference families. - Jingjun Bao; Marco Buratti; Lijin Ji (Bull. ICA, 2021)