@inproceedings{sgem2020s07038,
  title = {SERVICE APPROACH TO THE DEVELOPMENT OF ONLINE EDUCATIONAL PRODUCTS IN THE NATIONAL GEOINFORMATION CENTER OF BULGARIA},
  author = {Todor Branzov and Krassimira Ivanova and Velichka Milousheva},
  booktitle = {SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 20th International Multidisciplinary Scientific GeoConference Proceedings SGEM 2020, Informatics, Geoinformatics and Remote Sensing},
  year = {2020},
  pages = {291-300},
  publisher = {STEF92 Technology},
  doi = {10.5593/sgem2020/2.1/s07.038}
}