@article{GMJ_2002__9_4_51606,
     author = {Barr, Michael},
     title = {A duality on simplicial complexes.},
     journal = {Georgian mathematical journal},
     pages = {601--605},
     year = {2002},
     volume = {9},
     number = {4},
     zbl = {1070.55501},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/GMJ_2002__9_4_51606/}
}