@article{10_37236_568,
     author = {Zubeyir Cinkir},
     title = {The tau constant of a metrized graph and its behavior under graph operations},
     journal = {The electronic journal of combinatorics},
     year = {2011},
     volume = {18},
     number = {1},
     doi = {10.37236/568},
     zbl = {1217.05218},
     url = {http://geodesic.mathdoc.fr/articles/10.37236/568/}
}