@article{10_37236_1759,
     author = {Lorenz Halbeisen},
     title = {Fans and bundles in the graph of pairwise sums and products},
     journal = {The electronic journal of combinatorics},
     year = {2004},
     volume = {11},
     number = {1},
     doi = {10.37236/1759},
     zbl = {1056.11010},
     url = {http://geodesic.mathdoc.fr/articles/10.37236/1759/}
}