@article{10_37236_1329,
     author = {A. Odlyzko and J. B. Shearer and R. Siders},
     title = {Monotonic subsequences in dimensions higher than one},
     journal = {The electronic journal of combinatorics},
     year = {1997},
     volume = {4},
     number = {2},
     doi = {10.37236/1329},
     zbl = {0884.05001},
     url = {http://geodesic.mathdoc.fr/articles/10.37236/1329/}
}