Federico Ardila, Caroline J. Klivans, Lauren Williams. The positive Bergman complex of an oriented matroid. Eur. J. Comb., 27(4):577-591, 2006. [doi]
@article{ArdilaKW06,
title = {The positive Bergman complex of an oriented matroid},
author = {Federico Ardila and Caroline J. Klivans and Lauren Williams},
year = {2006},
doi = {10.1016/j.ejc.2004.12.006},
url = {http://dx.doi.org/10.1016/j.ejc.2004.12.006},
researchr = {https://researchr.org/publication/ArdilaKW06},
cites = {0},
citedby = {0},
journal = {Eur. J. Comb.},
volume = {27},
number = {4},
pages = {577-591},
}