@article{DM_1997_9_3_a8,
     author = {A. A. Makhnev},
     title = {Extensions of $\mathrm{GQ}(4,2)$, the description of hyperovals},
     journal = {Diskretnaya Matematika},
     pages = {101--116},
     publisher = {mathdoc},
     volume = {9},
     number = {3},
     year = {1997},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DM_1997_9_3_a8/}
}