On imprimitive groups with small degree
Rendiconti del Seminario Matematico della Università di Padova, Tome 86 (1991), pp. 131-142. 
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     author = {Lucchini, Andrea},
     title = {On imprimitive groups with small degree},
     journal = {Rendiconti del Seminario Matematico della Universit\`a di Padova},
     pages = {131--142},
     publisher = {Seminario Matematico of the University of Padua},
     volume = {86},
     year = {1991},
     mrnumber = {1154103},
     zbl = {0754.20005},
     language = {en},
     url = {http://archive.numdam.org/item/RSMUP_1991__86__131_0/}
}
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Lucchini, Andrea. On imprimitive groups with small degree. Rendiconti del Seminario Matematico della Università di Padova, Tome 86 (1991), pp. 131-142. http://archive.numdam.org/item/RSMUP_1991__86__131_0/

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