@article{JGAA_2015_19_1_a13,
     author = {J\'anos Pach},
     title = {Every graph admits an unambiguous bold drawing},
     journal = {Journal of graph algorithms and applications},
     pages = {299--312},
     year = {2015},
     volume = {19},
     number = {1},
     doi = {10.7155/jgaa.00359},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.7155/jgaa.00359/}
}