@article{RSMUP_1988__80__117_0,
     author = {Held, Dieter},
     title = {The situation of $Sp_4(4) \cdot 2$ in the sporadic simple group {He}},
     journal = {Rendiconti del Seminario Matematico della Universit\`a di Padova},
     pages = {117--125},
     publisher = {Seminario Matematico of the University of Padua},
     volume = {80},
     year = {1988},
     mrnumber = {988117},
     zbl = {0665.20007},
     language = {en},
     url = {http://www.numdam.org/item/RSMUP_1988__80__117_0/}
}