@article{10_37236_4779,
     author = {Jehan A. Al-bar and Ahmad N. Al-kenani and Najat M. Muthana and Cheryl E. Praeger and Pablo Spiga},
     title = {Finite edge-transitive oriented graphs of valency four: a global approach},
     journal = {The electronic journal of combinatorics},
     year = {2016},
     volume = {23},
     number = {1},
     doi = {10.37236/4779},
     zbl = {1329.05142},
     url = {http://geodesic.mathdoc.fr/articles/10.37236/4779/}
}