共 50 条
- [21] ENERGY LEVELS IN RARE-EARTH IONS PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL AND PHYSICAL SCIENCES, 1957, 240 (1223): : 509 - 523
- [23] Optical spectroscopy of rare earth ions in glasses GLASTECHNISCHE BERICHTE-GLASS SCIENCE AND TECHNOLOGY, 1998, 71 (10): : 289 - 299
- [30] LUMINESCENCE OF RARE EARTH IONS IN HOLMIUM NIOBATES IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENII FIZIKA, 1971, (06): : 143 - +