Anders Björner, Paul H. Edelman, Günter M. Ziegler. Hyperplane Arrangements with a Lattice of Regions. Discrete & Computational Geometry, 5:263-288, 1990.
@article{BjornerEZ90, title = {Hyperplane Arrangements with a Lattice of Regions}, author = {Anders Björner and Paul H. Edelman and Günter M. Ziegler}, year = {1990}, researchr = {https://researchr.org/publication/BjornerEZ90}, cites = {0}, citedby = {0}, journal = {Discrete & Computational Geometry}, volume = {5}, pages = {263-288}, }