@article{SLC_1982_06_a13,
     author = {Eberhard Triesch},
     title = {\"Uber die {Komplexit\"at} van {Graphenelgenschaften}},
     journal = {S\'eminaire lotharingien de combinatoire},
     year = {1982},
     volume = {06},
     url = {http://geodesic.mathdoc.fr/item/SLC_1982_06_a13/}
}