F_{3-}} ; O'Nan 群(英语:O'Nan group) O ′ N {\displaystyle O'N} 原田-Norton 群(英语:Harada-Nortongroup) H N {\displaystyle HN} 或 F 5 + {\displaystyle F_{5+}} 或 F
Computer construction of the Monster, J. Group Theory 1 (1998), 307–337. S. P. Norton(英语:Simon P. Norton), The uniqueness of the Fischer-Griess Monster
65 (5): 056010. ISSN 0556-2821. doi:10.1103/PhysRevD.65.056010 (英语). Harada, Tomohiro. Is there a black hole minimum mass?. Physical Review D. 2006-10-04