@article{10_37236_5588,
     author = {Matthew Farrell and Lionel Levine},
     title = {Multi-Eulerian tours of directed graphs},
     journal = {The electronic journal of combinatorics},
     year = {2016},
     volume = {23},
     number = {2},
     doi = {10.37236/5588},
     zbl = {1335.05041},
     url = {http://geodesic.mathdoc.fr/articles/10.37236/5588/}
}