@article{ELMA_1986__41_141380,
     author = {Hj. Stocker},
     title = {Vermutungen \"uber numerierbare {Graphen.}},
     journal = {Elemente der Mathematik},
     pages = {68--74},
     publisher = {mathdoc},
     volume = {41},
     year = {1986},
     url = {http://geodesic.mathdoc.fr/item/ELMA_1986__41_141380/}
}