@article{02221852,
title = {Minimal surface representations of virtual knots and links.},
journal = {Geometry \& Topology},
volume = {5},
year = {2005},
pages = {509-535},
doi = {10.2140/agt.2005.5.509},
zbl = {1083.57007},
language = {en},
url = {http://dml.mathdoc.fr/item/02221852}
}
Dye, H.A.; Kauffman, Louis H. Minimal surface representations of virtual knots and links.. Geometry & Topology, Tome 5 (2005) pp. 509-535. doi : 10.2140/agt.2005.5.509. http://gdmltest.u-ga.fr/item/02221852/