@article{MZ_1993__213_1_174528,
     author = {William L. Paschke},
     title = {Lower bound for the norm of a vertex-transitive graph.},
     journal = {Mathematische Zeitschrift},
     pages = {225--240},
     publisher = {mathdoc},
     volume = {213},
     number = {1},
     year = {1993},
     zbl = {0798.05036},
     url = {http://geodesic.mathdoc.fr/item/MZ_1993__213_1_174528/}
}