TY - CPAPER AU - Ryszard Kozakiewicz TI - BOUNDARIES IN SPATIAL INFORMATION SYSTEMS - PROPOSAL OF A CLASSIFICATION FORMETADATA PURPOSES T2 - SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 17th International Multidisciplinary Scientific GeoConference SGEM2017, Informatics, Geoinformatics and Remote Sensing PY - 2017 SP - 827 EP - 834 DO - 10.5593/sgem2017/21/s08.105 PB - STEF92 Technology ER -