TY - CPAPER AU - Andrzej Araszkiewicz TI - IMPACT OF HIGHER ORDER IONOSPHERIC CORRECTIONS ON THE RATE OF CHANGES OF BASELINE LENGTH IN GPS DIFFERENTIAL POSITIONING 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/s9.038 PB - Stef92 Technology ER -