@article{SLC_1986_15_a5,
     author = {Arne D\"ur},
     title = {M\"obius-Funktionen, {Inzidenzalgebren} und {Potenzreihendarstellungen}},
     journal = {S\'eminaire lotharingien de combinatoire},
     publisher = {mathdoc},
     volume = {15},
     year = {1986},
     url = {http://geodesic.mathdoc.fr/item/SLC_1986_15_a5/}
}