1. ANON (1959), Recovery of dimethyl terephthalate from crude polyesters, GB Patent 823,515.
2. ASAHI CHEMICAL INDUSTRY CO. LTD (1999), Poly(trimethylene terephthalate) fiber nonwoven fabrics with high tensile strength and good softness, JP 11107149.
3. ‘Crystallization of oriented amorphous poly(ethylene terephthalate) as revealed by X-ray diffraction and microhardness’;T ASANO;Polymer,1999
4. ‘Structure of Terylene’;W T ASTBURY;Nature (London),1946