@article{10_37236_1465,
     author = {Hisashi Ito and Akiko Kato and Zsigmond Nagy and Kenneth Zeger},
     title = {Zero capacity region of multidimensional run length constraints},
     journal = {The electronic journal of combinatorics},
     year = {1999},
     volume = {6},
     doi = {10.37236/1465},
     zbl = {0943.94004},
     url = {http://geodesic.mathdoc.fr/articles/10.37236/1465/}
}