| 000 | 00612cam a2200193 4500 | ||
|---|---|---|---|
| 001 | ABS61249 | ||
| 008 | 000000n1999 000 0 eng u | ||
| 035 | _a(Sirsi) u101864 | ||
| 100 | _aDoyle, N. | ||
| 245 | _aHeavenly helpers. | ||
| 260 | _c1999 | ||
| 490 |
_aConstruction News _v(6633) 16 September 1999, 26(1) |
||
| 520 | _a Explains how the Global Positioning System (GPS) is being used to maintain accuracy on the Channel Tunnel Rail Link project. | ||
| 650 | _aGPS | ||
| 650 | _aGLOBAL POSITIONING SYSTEM | ||
| 650 | _aCHANNEL TUNNEL RAIL LINK | ||
| 690 | _aMAPPING AND MEASUREMENT | ||
| 942 | _n0 | ||
| 999 |
_c60969 _d60969 |
||