%0 Journal Article %A Yu. V. Kravchenko %T On parallel straight lines designated on an $n$-ary group %J Problemy fiziki, matematiki i tehniki %D 2012 %P 54-57 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/PFMT_2012_4_a9/ %G ru %F PFMT_2012_4_a9