@article{SLC_1984_10_a21,
     author = {J\"urgen Stahl},
     title = {Zur {2-Dimension} der {Kronen} {Snk}},
     journal = {S\'eminaire lotharingien de combinatoire},
     publisher = {mathdoc},
     volume = {10},
     year = {1984},
     url = {http://geodesic.mathdoc.fr/item/SLC_1984_10_a21/}
}