TY  - CPAPER
AU  - Todor Branzov
AU  - Krassimira Ivanova
AU  - Velichka Milousheva
TI  - SERVICE APPROACH TO THE DEVELOPMENT OF ONLINE EDUCATIONAL PRODUCTS IN THE NATIONAL GEOINFORMATION CENTER OF BULGARIA
T2  - SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 20th International Multidisciplinary Scientific GeoConference Proceedings SGEM 2020, Informatics, Geoinformatics and Remote Sensing
PY  - 2020
SP  - 291
EP  - 300
DO  - 10.5593/sgem2020/2.1/s07.038
PB  - STEF92 Technology
ER  -