1. Kasap, S. O., Juhasz, C. and Hardwick, J. R. Proc. 3rd Int. Symp. on Industrial Uses of Selenium & Tellurium. pp.307Darien, CT, U.S.A.: Selenium‐Tellurium Development Association. c. f.
2. On the Question of Chain‐End ESR in Amorphous Selenium
3. Zingaro. “Chapter 4”. 167 op. cit.
4. Intermediate range order in amorphous solids