@article{10_1090_S0894_0347_99_00316_1,
     author = {Kook, W. and Reiner, V. and Stanton, D.},
     title = {Combinatorial {Laplacians} of matroid complexes},
     journal = {Journal of the American Mathematical Society},
     pages = {129--148},
     publisher = {mathdoc},
     volume = {13},
     number = {1},
     year = {2000},
     doi = {10.1090/S0894-0347-99-00316-1},
     url = {http://geodesic.mathdoc.fr/articles/10.1090/S0894-0347-99-00316-1/}
}