@article{10_37236_171,
     author = {Jeremy L. Martin and Jennifer D. Wagner},
     title = {Updown numbers and the initial monomials of the slope variety},
     journal = {The electronic journal of combinatorics},
     year = {2009},
     volume = {16},
     number = {1},
     doi = {10.37236/171},
     zbl = {1186.05014},
     url = {http://geodesic.mathdoc.fr/articles/10.37236/171/}
}