Balodis, J., Morozova, K., Silabriedis, G., Kalinka, M., Balodis, K., Mitrofanovs, I., Baltmane, I., & Jumare, I. (2016). Changing the national height system and GEOID model in Latvia. Geodesy and Cartography, 42(1), 20-24. https://doi.org/10.3846/20296991.2016.1168009