1. He Liguan; Chen Guiyun. A New Characterization of Simple K-3-Groups, Communications in Algebra ,2012, 40(10): 3903-3911
2. He Liguan; Chen Guiyun. A New Characterization of Sporadic Simple Groups, Italian Journal of Pure and Applied Mathematics,2013, 30(1): 373-392
3. He Liguan; Chen Guiyun. A New Characterization of Simple K4-Groups with Type L_2(p), 数学进展 ,2014, 43(5): 667-670
4. He Liguan; Chen Guiyun. A New Characterization of Mathieu Groups, 数学进展 , 2017, 46(5): 729-734
5. He Liguan; Chen Guiyun. On ONC-characterization of Simple K_3-groups, 数学进展,2018, 47(6): 821-832。