@article{10_37236_1117,
     author = {Iwao Sato},
     title = {Weighted zeta functions of graph coverings},
     journal = {The electronic journal of combinatorics},
     year = {2006},
     volume = {13},
     doi = {10.37236/1117},
     zbl = {1114.05084},
     url = {http://geodesic.mathdoc.fr/articles/10.37236/1117/}
}