| 000 | 00367nam a2200145Ia 4500 | ||
|---|---|---|---|
| 008 | 170101s1972 xx 000 0 und d | ||
| 082 | _a621.381 51 I-5R | ||
| 100 | _aGIORGI, T. A. | ||
| 245 | 0 | _aResidual gases in electron tubes: proceedings | |
| 260 |
_bLondon _c1972 |
||
| 300 | _a399p | ||
| 650 | _aELECTRON TUBES | ||
| 653 | _aELECTRON TUBES | ||
| 942 |
_2ddc _cB |
||
| 999 |
_c47157 _d47157 |
||