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| 100 | _aWIESNER, LOTHAR | ||
| 245 | 0 | _aTELEGRAPH AND DATA TRANSMISSION OVER SHORTWAVE RADIO LINKS: FUNDAMENTAL PRINCIPLES AND NETWORKS | |
| 250 | _a2ND ED. | ||
| 260 | _aLONDON | ||
| 260 |
_aReino Unido _bSIEMENS AKTIENGESELLSCHAFT HEYDEN & SON LTD _c1981 |
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| 300 | _a199 | ||
| 500 | _aISBN: 0 85501 291 9 (HEYDEN & SON LTD) | ||
| 650 | _aRADIO | ||
| 650 | _aSOFTWARE | ||
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