@inproceedings{sgem2017s09008,
  title = {ALGORITHM OF GEOMAGNETIC ACTIVITY IERR/DERR-INDICES CALCULATION AND ITS PROGRAMMING REALIZATION},
  author = {Andrei Vorobev and Olga Khristodulo and Oksana Efremova and Gulnara Vorobeva},
  booktitle = {SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 17th International Multidisciplinary Scientific GeoConference SGEM2017, Informatics, Geoinformatics and Remote Sensing},
  year = {2017},
  pages = {59-66},
  publisher = {STEF92 Technology},
  doi = {10.5593/sgem2017/22/s09.008}
}