@article{JGAA_2005_9_3_a1,
     author = {Markus Eiglsperger and Martin Siebenhaller and Michael Kaufmann},
     title = {An {Efficient} {Implementation} of {Sugiyama's} {Algorithm} for {Layered} {Graph} {Drawing}},
     journal = {Journal of Graph Algorithms and Applications},
     pages = {305--325},
     publisher = {mathdoc},
     volume = {9},
     number = {3},
     year = {2005},
     doi = {10.7155/jgaa.00111},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.7155/jgaa.00111/}
}