@article{JGAA_2007_11_1_a1,
     author = {Alice Dean and William Evans and Ellen Gethner and Joshua Laison and Mohammad Ali Safari and William Trotter},
     title = {Bar {k-Visibility} {Graphs}},
     journal = {Journal of Graph Algorithms and Applications},
     pages = {45--59},
     publisher = {mathdoc},
     volume = {11},
     number = {1},
     year = {2007},
     doi = {10.7155/jgaa.00136},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.7155/jgaa.00136/}
}