%0 Journal Article %A M. V. Nikolaev %A D. V. Matyukhin %T On the complexity of two-dimensional discrete logarithm problem in a~finite cyclic group with effective automorphism of order~6 %J Diskretnaya Matematika %D 2013 %P 54-65 %V 25 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DM_2013_25_4_a5/ %G ru %F DM_2013_25_4_a5