@article{JGAA_2016_20_2_a4,
     author = {Emily Gaub and Michelle Rose and Paul Wenger},
     title = {The {Unit} {Bar} {Visibility} {Number} of a {Graph}},
     journal = {Journal of Graph Algorithms and Applications},
     pages = {269--297},
     publisher = {mathdoc},
     volume = {20},
     number = {2},
     year = {2016},
     doi = {10.7155/jgaa.00393},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.7155/jgaa.00393/}
}