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Global Positioning System: Theory and Practice. B. Hofmann-Vellenhof, H. Lichtenegger, and J. Collins (translated to Ukrainian, Ed. Ya. S. Yatskiv). Kosm. nauka tehnol. 1997 ;3(1):111-111.
The State Service of the Unified Time and Standard Frequencies — the necessary element of development of ground-based space infrastructure of Ukraine. Kosm. nauka tehnol. 1997 ;3(1):07–15.
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