| 261 | |
| 262 | |
| Language: | English |
| 263 | |
| 264 | |
| Language: | English |
| 265 | |
| 266 | Resonant abosrption in di-Halobenzenes by microwave spectroscopy |
| Language: | English |
| 267 | Study of the L-absorption spectra of rare earth elements: 57 to 63 Eu |
| 268 | |
| Language: | English |
| 269 | |
| 270 | |
| Language: | English |
| 271 | Some theoretical and experimental studies in the far infrared |
| 272 | |
| Language: | English |
| 273 | Some theoretical studies on the optical properties of single and polycrystalline media |
| 274 | |
| Language: | English |
| 275 | Investigations on the Raman and infra-red spectra of crystals |
| 276 | |
| Language: | English |
| 277 | Theoretical studies of some spectroscopic proceses in earths atmosphere |
| 278 | |
| Language: | English |
| 279 | |
| 280 | Spectroscopic studies of trace elements and low content impurities in some materials |
| Language: | English |