11. On the analogy between photoluminescence and carrier-type reversal in Bi-and Pb-doped glasses

M.A Hughes, R.M Gwilliam, K. Homewood, B. Gholipour, D.W Hewak, T-H Lee, S.R. Elliott, T Suzuki, Y. Ohishi, T. Kohoutek, R.J. Curry.