References
- K.W. R. Gilkes, H.S. Sands, D.N. Batchelder, W.I. Milne, and J. Robertson, Journal of Non-Crystalline Solids 227-230, 612–616 (1980).
- S. Prawer, K.W. Nugent, Y. Lifshits, G.D. Lempert, E. Grossman, J. Kulik, I. Avgal, and R. Kalish, Diamond, and Related Materials 5, 433–438 (1996).
- A.A. Ogwu, R.W. Lamberton, S. Morley, P. Maguire, and J. McLaughlin, Physica B 269, 335–344 (1999).