@article{JAC_2009__30_4_a5,
     author = {Haase, Christian and Paffenholz, Andreas},
     title = {Quadratic {Gr\"obner} bases for smooth $3\times 3$ transportation polytopes},
     journal = {Journal of Algebraic Combinatorics},
     pages = {477--489},
     publisher = {mathdoc},
     volume = {30},
     number = {4},
     year = {2009},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/JAC_2009__30_4_a5/}
}