@article{10_37236_422,
     author = {Yichao Chen},
     title = {Lower bounds for the average genus of a {CF-graph}},
     journal = {The electronic journal of combinatorics},
     year = {2010},
     volume = {17},
     doi = {10.37236/422},
     zbl = {1204.05040},
     url = {http://geodesic.mathdoc.fr/articles/10.37236/422/}
}