1. Baeyer, A., Ber. 5, 25 (1872).
2. Barth, B. P., “Phenolic Resin Adhesives,” in “Handbook of Adhesives,” 2nd Ed., I. Skeist, Ed., New York, Van Nostrand Reinhold, 1977, Ch 23.
3. Baekeland, L. H., U.S. Patent 942,699 (July 13, 1907).
4. Baekeland, L. H., J. Ind. Eng. Chem., 1, 149(1909).
5. “Materials,” Modern Plastics, 62, 67 (1985); 64, 55 (1987); 65, 98 (1988).