%0 Journal Article %A Alexandre M. Baranov %T Lightons and helixons as lightlike particles in general relativity %J Žurnal Sibirskogo federalʹnogo universiteta. Matematika i fizika %D 2011 %P 3-10 %V 4 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/JSFU_2011_4_1_a0/ %G en %F JSFU_2011_4_1_a0