@article{00807685, title = {Tournaments as feedback arc sets.}, journal = {The Electronic Journal of Combinatorics [electronic only]}, volume = {2}, year = {1995}, zbl = {0829.68100}, language = {en}, url = {http://dml.mathdoc.fr/item/00807685} }
Isaak, Garth. Tournaments as feedback arc sets.. The Electronic Journal of Combinatorics [electronic only], Tome 2 (1995) . http://gdmltest.u-ga.fr/item/00807685/