@article{10_4153_CJM_2011_028_8,
     author = {Cohen, D. and Denham, G. and Falk, M. and Varchenko, A.},
     title = {Critical {Points} and {Resonance} of {Hyperplane} {Arrangements}},
     journal = {Canadian journal of mathematics},
     pages = {1038--1057},
     year = {2011},
     volume = {63},
     number = {5},
     doi = {10.4153/CJM-2011-028-8},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-2011-028-8/}
}