@article{10_37236_1089,
     author = {Jason P. Bell and Stanley N. Burris and Karen A. Yeats},
     title = {Counting rooted trees: the universal law \(t(n)\sim {C\rho^{-n}} n^{-3/2}\)},
     journal = {The electronic journal of combinatorics},
     year = {2006},
     volume = {13},
     doi = {10.37236/1089},
     zbl = {1099.05023},
     url = {http://geodesic.mathdoc.fr/articles/10.37236/1089/}
}