1. Bower, D.I. and Maddams, W.F. (1992), The Vibrational Spectroscopy of Polymers, Cambridge University Press, Cambridge.
2. Arruebarrena de Báez, M., Hendra, P.J. and Judkins, M. (1995) The Raman spectra of oriented isotactic polypropylene. Spectrochim. Acta, A51, 2117–2124.
3. van der Ven, S. (1990), Polypropylene and Other Polyolefins — Polymerization and Characterization, Elsevier, Amsterdam.
4. LaCoste, J., Vaillant, D. and Carlsson, D.J. (1993), Gamma-initiated, photoinitiated, and thermally-initiated oxidation of isotactic polypropylene. J. Polymer Sci. Polymer Chem., 31, 715–722.