000 00612cab a2200229 4500
001 X2681
008 090401t1991 xxu||||| |||| 00| 0 eng d
035 _a(Sirsi) u25776
041 _aeng
245 _aECS or ECDIS - or ENS
260 _c1991
350 _a0
490 _aHydrographic Journal
_v(61) July 1991, 19-22(4)
650 _aELECTRONIC CHART DISPLAY AND INFORMATION SYSTEMS
650 _aELECTRONIC CHART SYSTEMS
650 _aELECTRONIC NAVIGATION SYSTEM
650 _aGPS
650 _aHYDROGRAPHIC SURVEYING
690 _aMAPPING AND MEASUREMENT
942 _n0
948 _c04/03/1997
999 _c17323
_d17323