1. D. Garbuzov, I. Kudryashov, A. Komissarov, M. Maiorov, W. Roff, and J. Connolly, in Technical Digest of OFC 2003 (OSA, 2003), pp. 10–12.
2. D. Garbuzov and M. Dubinskii, in Technical Digest of Solid State and Diode Lasers Technology Review, SSDLTR 2004 (Direct Energy Professional Society, 2004), p. 19.
3. Quasi-two-level Er3+ :Y3 Al5 O12 laser for the 16-micrometer range