1. Quoted from N. Ya Vilenkin,Combinatorics (Academic Press, New York. 1971) p. 119.
2. From: N.N. Vorobyov,The Fibonacci Numbers (Heath and Company, Boston, 1963) p. 2.
3. A.N. Philippou, G.E. Berguni and A.F. Horadarn, eds.,The Fibonacci Numbers and their Applications (Reidel, Dordrecht, 1986).
4. M. Gordon and W.H.T. Davison, J. Chem. Phys. 20 (1952)428; see also S.J. Cyvin, Acta Chim. Hung 112(1983)281.
5. J.L. Bergan, B.N. Cyvin and S.J. Cyvin, Acta Chim. Hung. 124 (1987)299.