TY - CPAPER AU - Zbigniew Siejka TI - ACCURACY OF GNSS PRECISION POSITIONING IN REAL TIME USING SIGNALS FROM GALILEO AND BEIDOU SATELLITES - CASE STUDY IN POLAND T2 - SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 18th International Multidisciplinary Scientific GeoConference SGEM2018, Informatics, Geoinformatics and Remote Sensing PY - 2018 SP - 575 EP - 582 DO - 10.5593/sgem2018/2.2/s09.072 PB - STEF92 Technology ER -