@article{10_37236_5232,
     author = {Yuval Roichman},
     title = {On exponential growth of degrees},
     journal = {The electronic journal of combinatorics},
     year = {2015},
     volume = {22},
     number = {2},
     doi = {10.37236/5232},
     zbl = {1319.05145},
     url = {http://geodesic.mathdoc.fr/articles/10.37236/5232/}
}