| 000 | 00627 a2200241 4500 | ||
|---|---|---|---|
| 001 | 335414 | ||
| 020 | _a | ||
| 041 | _aeng | ||
| 080 | _aLNASA CR 1661 : 1970 | ||
| 245 | _aOperation of a thermionic converter with a (112) to (114) oriented tungsten emitter and a niobium collector with oxygen present | ||
| 250 | _a | ||
| 260 | _aWashington, D.C. | ||
| 260 | _bNASA | ||
| 260 | _c1970 | ||
| 300 | _a77 p. | ||
| 300 | _c | ||
| 856 | _u | ||
| 490 | _aNASA CR 1661 : 1970 | ||
| 700 | _a | ||
| 650 | _a | ||
| 650 | _aThermionic converter performance fa, Tungsten emitter, Niobium collector with contaminants | ||
| 942 | _cPP | ||
| 942 | _2UDC | ||
| 999 |
_c200327 _d200327 |
||