%0 Journal Article %A P. P. Andrusevich %A V. A. Pletyukhov %A V. I. Strazhev %T On internal symmetries of the Dirac equation in graphene %J Problemy fiziki, matematiki i tehniki %D 2011 %P 11-14 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/PFMT_2011_2_a1/ %G ru %F PFMT_2011_2_a1