@inproceedings{sgem2022s0920,
  title = {A SPECIFIC APPROACH TO LEAST SQUARES ADJUSTMENT OF THE STATE LEVELLING NETWORK},
  author = {Slaveyko Gospodinov and Elena Peneva and P.S. Penev},
  booktitle = {SGEM International Multidisciplinary Scientific GeoConference- EXPO Proceedings; 22nd SGEM International Multidisciplinary Scientific GeoConference Proceedings 2022, Informatics, Geoinformatics and Remote Sensing},
  year = {2022},
  pages = {163-170},
  publisher = {STEF92 Technology},
  doi = {10.5593/sgem2022/2.1/s09.20}
}