"US Coast Guard Navigation Center" . . "796342" . "Alexandria" . "Civil GPS Service Information Committee. 29-th Meeting. Summ" . "Hrdina, Zden\u011Bk" . . "Fi\u0161er, Jan" . "RIV:J04/97:D3 13718" . "21230" . "Differential GPS Technology in Czech Republic" . . . . . "1;5" . . . "Vejra\u017Eka, Franti\u0161ek" . "0"^^ . "Differential GPS Technology in Czech Republic"@en . "Kov\u00E1\u0159, Pavel" . "[1F1C9C6F01CF]" . . "Seidl, Libor" . "RIV:J04/97:D3 13718!RIV/1998/MSM/MSM8D30" . . "Differential GPS Technology in Czech Republic"@en . . "5"^^ . . . "Differential GPS Technology in Czech Republic" . "5"^^ .