@article{DA_2016_23_1_a4,
     author = {V. A. Vitkup},
     title = {On symmetric properties of {APN} functions},
     journal = {Diskretnyj analiz i issledovanie operacij},
     pages = {65--81},
     publisher = {mathdoc},
     volume = {23},
     number = {1},
     year = {2016},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DA_2016_23_1_a4/}
}