@article{JGAA_2015_19_1_a21,
     author = {Yuichi Asahiro and Jesper Jansson and Eiji Miyano and Hirotaka Ono},
     title = {Graph {Orientations} {Optimizing} the {Number} of {Light} or {Heavy} {Vertices}},
     journal = {Journal of Graph Algorithms and Applications},
     pages = {441--465},
     publisher = {mathdoc},
     volume = {19},
     number = {1},
     year = {2015},
     doi = {10.7155/jgaa.00371},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.7155/jgaa.00371/}
}