Hofmann-Wellenhof, Bernhard Global positioning system theory and practice Bernhard Hofmann-Wellenhof , Herbert Lichtenegger and James Collins - New York Springer-Verlag 1992 - xxi+326p. illus;index;ref. ISBN: 3-211-82364-6 Subjects--Topical Terms: GpsSatellite OrbitsSpace SegmentGlobal Positioning System Universal Decimal Class. No.: 550.837.8:528.2 / HOF