Virtual knots :the state of the art
Manturov, Vassily Olegovich and Iiyutko, Denis Petrovich
Virtual knots :the state of the art Manturov, Vassily Olegovich and Iiyutko, Denis Petrovich - World Scientific 2012
514.2242 / T12 MAN.I
Virtual knots :the state of the art Manturov, Vassily Olegovich and Iiyutko, Denis Petrovich - World Scientific 2012
514.2242 / T12 MAN.I