Aldred, R.; Bau, S.; Holton, D., and McKay, B. "Nonhamiltonian 3-Connected Cubic Planar Graphs." SIAM J. Disc. Math.13, 25-32, 2000.Barnette, D. Conjecture 5 in Recent Progress in Combinatorics: Proceedings of the Third Waterloo Conference on Combinatorics, May 1968 (Ed. W. T. Tutte). New York: Academic Press, 1969.Holton, D.; Manvel, B.; and McKay, B. "Hamiltonian Cycles in Cubic 3-Connected Bipartite Planar Graphs." J. Combin. Th. Ser. B38, 279-297, 1985.Owens, P. J. "Bipartite Cubic Graphs and a Shortness Exponent." Disc. Math.44, 327-330, 1983.