TY - CPAPER AU - Karol Dawidowicz TI - RELATIVE GPS/GLONASS COORDINATES DETERMINATION IN URBAN AREAS ACCURACY ANAYSIS T2 - SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 15th International Multidisciplinary Scientific GeoConference SGEM2015, INFORMATICS, GEOINFORMATICS AND REMOTE SENSING PY - 2015 DO - 10.5593/sgem2015/b22/s9.053 PB - Stef92 Technology ER -