G. Li, F. Ruskey, The advantages of forward thinking in generating rooted and free trees, in: 10th Annual ACM-SIAM Symposium on Discrete Algorithms, SODA, 1999, pp. 939-940.
H. Mélot, Facet defining inequalities among graph invariants: the system GraPHedron, Discrete Applied Mathematics 156 (2008) 1875-1891.
M. Meringer, Fast generation of regular graphs and construction of cages, Journal of Graph Theory 30 (2) (1999) 137-146.
A. Peeters, K. Coolsaet, G. Brinkmann, N. Van Cleemput, V. Fack, Grinvin in a nutshell, Journal of Mathematical Chemistry 45 (2) (2009) 471-477. in: Conference on 20 Years of Molecular Topology in Cluj.
H.E. Pence, A. Williams, Chemspider: an online chemical information resource, Journal of Chemical Education 87 (2010) 1123-1124. http://www.chemspider.com.
R.C. Read, R.J. Wilson, An Atlas of Graphs, Oxford Science Publications, 1998, ISBN: 0-19-825650-4.
N. Sloane, The on-line encyclopedia of integer sequences, https://oeis.org/.