@article{10_4171_dm_200,
     author = {Art M. Duval},
     title = {A common recursion for {Laplacians} of matroids and shifted simplicial complexes},
     journal = {Documenta mathematica},
     pages = {583--618},
     year = {2005},
     volume = {10},
     doi = {10.4171/dm/200},
     url = {http://geodesic.mathdoc.fr/articles/10.4171/dm/200/}
}