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- [21] POSITION FIXING AT SEA BY MEANS OF SATELLITES JOURNAL OF THE INSTITUTE OF NAVIGATION, 1967, 20 (04): : 526 - &
- [22] Precise position fixing for dredging operations Dock and Harbour Authority, 1988, 69 (803): : 59 - 60
- [23] POSITION FIXING REQUIREMENTS FOR THE MERCHANT SHIP JOURNAL OF NAVIGATION, 1985, 38 (01): : 122 - 132
- [26] SATELLITE/BUOY COMMUNICATIONS AND POSITION FIXING NAVAL RESEARCH REVIEWS, 1969, 22 (09): : 1 - &
- [28] STATISTICAL ANALYSIS OF POSITION FIXING IN 3 DIMENSIONS PROCEEDINGS OF THE INSTITUTION OF ELECTRICAL ENGINEERS-LONDON, 1969, 116 (09): : 1505 - &
- [29] SHIPBOARD EQUIPMENT FOR NAVIGATION AND POSITION FIXING BY SATELLITE ELECTRICAL COMMUNICATION, 1969, 44 (02): : 135 - &