1. Chawla KK (1998) Composite materials: science and engineering. Springer, Dordrecht
2. Boenig HV (1974) Unsaturated polyesters, structure and properties. Elsevier, Amsterdam
3. Baum ME, Fekete F (1969) US Patent 3,431,329
4. Waigaonkar S, Babu BCJ, Rajput A (2011) Ind J Eng Mater Sci 18:31
5. Shiraishi M, Nakayama T (2014) US Patent 8,834,741 B2