@article{SLC_1984_10_a22,
     author = {Eberhard Triesch},
     title = {Neue {Ergebnisse} \"uher die {Komplexit\"at} von {Grapheneigenschaften}},
     journal = {S\'eminaire lotharingien de combinatoire},
     year = {1984},
     volume = {10},
     url = {http://geodesic.mathdoc.fr/item/SLC_1984_10_a22/}
}