1. Bowry, C. and Bonnett, P. (1991) Liquid crystal polymer optical memories: analogue, digital and holographic. Optical Computing and Processing, 1(1), 13–21.
2. Duggan, P.J. et al. (1984) Optical recording medium. European Patent 186 404.
3. Emmelius, M., Pawlowski, G and Vollmann, H.W. (1989) Materials for optical data storage. Angewandte Chemie, International Edition (English). 28, 1445–1471.
4. Etzbach, K-H. et al. (1985) Optical recording medium. European Patent 17 1045.
5. Feinleib, J. (1972) Information recording system employing amorphous materials. US Patent 3 636 526.