@article{10_4153_CJM_2009_046_2,
     author = {Saliola, Franco V.},
     title = {The {Face} {Semigroup} {Algebra} of a {Hyperplane} {Arrangement}},
     journal = {Canadian journal of mathematics},
     pages = {904--929},
     year = {2009},
     volume = {61},
     number = {4},
     doi = {10.4153/CJM-2009-046-2},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-2009-046-2/}
}