1. New wood with an old look;Anon;Wood & Wood Prod,1976
2. Clear finishes for exterior wood. Field exposure tests;Ashton;J. Paint Technol,1967
3. Microscopic studies of the weathering of radiata pine sapwood;Bamber;J. Inst. Wood Sci,1981
4. Bond energies;Benson;J. Chem. Educ,1965
5. Inorganic Surface Treatments for Weather-resistant Natural Finishes. Research Paper FPL 232;Black,1974