@article{JAC_2011__33_3_a7,
     author = {Gaubert, St\'ephane and Katz, Ricardo D.},
     title = {Minimal half-spaces and external representation of tropical polyhedra},
     journal = {Journal of Algebraic Combinatorics},
     pages = {325--348},
     publisher = {mathdoc},
     volume = {33},
     number = {3},
     year = {2011},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/JAC_2011__33_3_a7/}
}