@article{JGAA_2006_10_2_a10,
     author = {Junichiro Fukuyama},
     title = {NP-completeness of the {Planar} {Separator} {Problems}},
     journal = {Journal of Graph Algorithms and Applications},
     pages = {317--328},
     publisher = {mathdoc},
     volume = {10},
     number = {2},
     year = {2006},
     doi = {10.7155/jgaa.00130},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.7155/jgaa.00130/}
}