@article{10_2140_agt_2007_07_583,
     author = {Fleming, Thomas and Mellor, Blake},
     title = {Intrinsic linking and knotting in virtual spatial graphs},
     journal = {Algebraic and Geometric Topology},
     pages = {583--601},
     year = {2007},
     volume = {7},
     number = {2},
     doi = {10.2140/agt.2007.07.583},
     url = {http://geodesic.mathdoc.fr/articles/10.2140/agt.2007.07.583/}
}