TY - JOUR AU - V. A. Roman'kov TI - Discrete logarithm for nilpotent groups and cryptanalysis of polylinear cryptographic system JO - Prikladnaya Diskretnaya Matematika. Supplement PY - 2019 SP - 154 EP - 160 IS - 12 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/PDMA_2019_12_a43/ LA - en ID - PDMA_2019_12_a43 ER -