"Scientific Assembly of the International Association of Geodesy (1997 : Rio de Janeiro, Brazil)" . . . . . "Géodésie Congrès." . . "Géodésie." . . "IAG Scientific Assembly (1997.09.03-09 Rio de Janeiro)" . . . "Global positioning system." . . "Global Positioning System." . "Brazilian Congress of Carthography (18th : Sept. 1997 : Rio de Janeiro,)" . . . "Global Positioning System Congresses." . . "Geodesy Congresses." . . "Système de référence." . . "GPS." . . "GPS" . "Geodesy." . . . . . . "This volume is based on an international symposium held in Rio de Janeiro. It gives a progress report on geodetic positioning with GPS. The maintenance and the densification of reference frames are treated for the purpose of establishing global and regional GPS networks. The scientific achievements of the South American Geocentric Reference System project (SIRGAS) are described. Several contributions review the state of the art of GPS analysis techniques, ambiguity resolution methods, as well as GPS antenna and site problems. Novel applications of kinematic GPS positioning and quality control issues of real-time GPS positioning are discussed."@en . . "Conference proceedings"@en . . . . . . . . "Advances in positioning and reference frames : IAG scientific assembly, Rio de Janeiro, Brazil, September 3 - 9, 1997 ; [in conjunction with the 18th Brazilean Congress of Carthography]" . "Kongress" . . "Advances in positioning and reference frames : international symposium no. 118 : Rio de Janeiro, Brazil, September 3-9, 1997"@en . . . . . . . . . . . . . . . . "Conference papers and proceedings"@en . "Conference papers and proceedings" . . "Advances in positioning and reference frames : IAG scientific assembly, Rio de Janeiro, Brazil, september 3-9, 1997" . "Advances in positioning and reference frames : Rio de Janeiro, Brazil, September 3-9, 1997" . . . . . "Electronic books"@en . . . "Advances in positioning and reference frames : IAG Scientific Assembly, Rio de Janeiro, Brazil, September 3-9, 1997" . "Advances in positioning and reference frames : IAG Scientific Assembly, Rio de Janeiro, Brazil, September 3-9, 1997"@en . . . "Advances in Positioning and Reference Frames IAG Scientific Assembly Rio de Janeiro, Brazil, September 3-9, 1997" . . "Advances in positioning and reference frames" . . . . "IAG Scientific Assembly (Sept. 1997 : Rio de Janeiro,)" . . . "GPS Congrès." . . "Kongress" . .