%0 Journal Article %A Alexander Astrom %A Christoffr Astrom %T Octagonal Knotworks. A Mathematical Approach %J Visual Mathematics %D 2009 %V 11 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/VM_2009_11_3_a0/ %G en %F VM_2009_11_3_a0