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- [2] USE OF ACTIVE MATERIAL IN 3-LEVEL SOLID STATE MASERS BELL SYSTEM TECHNICAL JOURNAL, 1959, 38 (02): : 335 - 352
- [3] SPIN-SPIN ENERGY TRANSFER AND THE OPERATION OF 3-LEVEL MASERS PROCEEDINGS OF THE INSTITUTE OF RADIO ENGINEERS, 1959, 47 (12): : 2120 - 2120
- [5] LASER-INDUCED TRANSIENTS IN DOPPLER-BROADENED 3-LEVEL SYSTEMS BULLETIN OF THE AMERICAN PHYSICAL SOCIETY, 1976, 21 (04): : 599 - 599