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| 999 |
_c68173 _d68173 |
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| 005 | 20201214124045.0 | ||
| 008 | 180710s9999 xx 000 0 und d | ||
| 020 | _a247687 | ||
| 041 | _aEN | ||
| 082 |
_a621.3805 _bINS _223 |
||
| 245 | _aIre transactions on communications systems-vol. CS-9, 1961. | ||
| 260 |
_a[Netherland] _b[s.n.] _c1960 |
||
| 300 | _a472 p. | ||
| 509 | _aNS | ||
| 650 | _aRadio communication-Index | ||
| 942 | _cS | ||