000 00919cab a2200253 4500
001 X1680
008 090401t1994 xxu||||| |||| 00| 0 eng d
035 _a(Sirsi) u18645
041 _aeng
100 _aHawksbee, D. J.
245 _aOffshore positioning systems Part 1
260 _c1994
350 _a0
490 _aSurveying World
_v2(6) September 1994, 20-21(2)
520 _aPart 1 of two on offshore positioning systems describes the operational theory and price of differential global positioning systems and the role of radio positioning systems. Fact file concludes with a comparison of selected GPS systems.
650 _aDIFFERENTIAL GLOBAL POSITIONING SYSTEMS
650 _aGLOBAL POSITIONING SYSTEMS
650 _aGPS
650 _aOFFSHORE POSITIONING
690 _aMANAGEMENT-BUSINESS MANAGEMENT-INFORMATION MANAGEMENT
690 _aLAND SURVEYING
942 _n0
948 _c04/03/1997
999 _c12408
_d12408