@inproceedings{sgem2019s09050,
  title = {USING NATIONAL DIGITAL ELEVATION MODELS FOR CROSS-BOUNDARY APPLICATIONS: A QUALITY ASSESSMENT},
  author = {Cornelis Stal},
  booktitle = {SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 19th International Multidisciplinary Scientific GeoConference SGEM2019, Informatics, Geoinformatics and Remote Sensing},
  year = {2019},
  pages = {407-414},
  publisher = {STEF92 Technology},
  doi = {10.5593/sgem2019/2.2/s09.050}
}