@article{CMUC_1992__33_1_a11,
     author = {Bene\v{s}, Viktor},
     title = {Extremal and optimal solutions in the transshipment problem},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {97--112},
     publisher = {mathdoc},
     volume = {33},
     number = {1},
     year = {1992},
     mrnumber = {1173751},
     zbl = {0754.60008},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMUC_1992__33_1_a11/}
}