@article{CMUC_1999__40_3_a16,
     author = {Hochst\"attler, Winfried and Ne\v{s}et\v{r}il, Jaroslav},
     title = {Linear programming duality and morphisms},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {577--592},
     publisher = {mathdoc},
     volume = {40},
     number = {3},
     year = {1999},
     mrnumber = {1732478},
     zbl = {1065.05027},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMUC_1999__40_3_a16/}
}