@article{02104398, title = {Links associated with generic immersions of graphs.}, journal = {Geometry \& Topology}, volume = {8}, year = {2004}, pages = {571-594}, doi = {10.2140/agt.2004.4.571}, zbl = {1055.57006}, language = {en}, url = {http://dml.mathdoc.fr/item/02104398} }
Kawamura, Tomomi. Links associated with generic immersions of graphs.. Geometry & Topology, Tome 8 (2004) pp. 571-594. doi : 10.2140/agt.2004.4.571. http://gdmltest.u-ga.fr/item/02104398/