@article{DCG_1990__5_2_131117,
     author = {A. Bj\"orner and P.H. Edelman and G.M. Ziegler},
     title = {Hyperplane {Arrangements} with a {Lattice} of {Regions.}},
     journal = {Discrete & computational geometry},
     pages = {263--288},
     publisher = {mathdoc},
     volume = {5},
     number = {2},
     year = {1990},
     zbl = {0698.51010},
     url = {http://geodesic.mathdoc.fr/item/DCG_1990__5_2_131117/}
}