TY - JOUR AU - A. E. Trishin TI - The nonlinearity index for a~piecewise-linear substitution of the additive group of the field~$\mathbb F_{2^n}$ JO - Prikladnaâ diskretnaâ matematika PY - 2015 SP - 32 EP - 42 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/PDM_2015_4_a2/ LA - ru ID - PDM_2015_4_a2 ER -