%0 Journal Article
%T Free Knots and Groups
%A Vassily Olegovich Manturov
%A Oleg Vassilievich Manturov
%J Mathematics
%D 2009
%I arXiv
%X We construct a simple invariant of free link valued in a certain group by using parity.
%U http://arxiv.org/abs/0912.2694v3