Spilker and Parkinson: from GPS Origins to L5.
| Autor: | Spilker Jr., Jim, Parkinson, Brad, Hallwerck, Don, Woodcock, John, Lachapelle, Gerard1, de Groot, Kees |
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| Zdroj: | GPS World. Jul2010, Vol. 21 Issue 7, p10-12. 3p. |
| Databáze: | Business Source Ultimate |
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