On the computation of the order of Janko’s first simple group 𝔉 1
Rendiconti del Seminario Matematico della Università di Padova, Volume 46 (1971), p. 371-374
@article{RSMUP_1971__46__371_0,
     author = {Dietzsch, Herbert},
     title = {On the computation of the order of Janko's first simple group $\mathfrak {F}\_1$},
     journal = {Rendiconti del Seminario Matematico della Universit\`a di Padova},
     publisher = {Seminario Matematico of the University of Padua},
     volume = {46},
     year = {1971},
     pages = {371-374},
     zbl = {0239.20017},
     mrnumber = {302755},
     language = {en},
     url = {http://www.numdam.org/item/RSMUP_1971__46__371_0}
}
Dietzsch, Herbert. On the computation of the order of Janko’s first simple group $\mathfrak {F}_1$. Rendiconti del Seminario Matematico della Università di Padova, Volume 46 (1971) pp. 371-374. http://www.numdam.org/item/RSMUP_1971__46__371_0/

[1] Janko, Z.: A new finite simple group with abelian Sylow-2-subgroups and its characterization, Journal of Algebra 3 (2) (1966), 147-186. | MR 193138 | Zbl 0214.28003

[2] Suzuki, M.: Applications of group characters, Proc. Symp. Pure Math. 1 (1959), 88-89. | MR 114869 | Zbl 0097.01504