@article{10_37236_71,
     author = {Jakob Jonsson},
     title = {Hard squares with negative activity on cylinders with odd circumference},
     journal = {The electronic journal of combinatorics},
     year = {2009},
     volume = {16},
     number = {2},
     doi = {10.37236/71},
     zbl = {1187.05052},
     url = {http://geodesic.mathdoc.fr/articles/10.37236/71/}
}