| 000 | 00457nam a2200193Ia 4500 | ||
|---|---|---|---|
| 005 | 20250425161603.0 | ||
| 008 | 250425s9999 xx 000 0 und d | ||
| 020 | _a0906048044 | ||
| 041 | _aeng | ||
| 082 | _a621.38043 | ||
| 100 | _aWELCH, SAMUEL | ||
| 245 | 0 | _aSIGNALLING IN TELECOMMUNICATIONS NETWORKS | |
| 250 | _aS.E. | ||
| 260 | _aLONDON | ||
| 260 |
_aReino Unido _bPETER PEREGRINUS _c1979 |
||
| 300 | _a386 | ||
| 942 | _c01 | ||
| 010 | _a23562 | ||
| 999 |
_c212103 _d212103 |
||