@article{PDMA_2015_8_a7,
     author = {V. A. Vitkup},
     title = {On the number of symmetric coordinate functions of {APN} function},
     journal = {Prikladnaya Diskretnaya Matematika. Supplement},
     pages = {23--25},
     year = {2015},
     number = {8},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/PDMA_2015_8_a7/}
}