SHULJAKOVA, Ljuba. Geomagnetic measurements in Latvia. Geodesy and Cartography, [S. l.], v. 38, n. 2, p. 75–80, 2012. DOI: 10.3846/20296991.2012.692212. Disponível em: https://journals.vilniustech.lt/index.php/GAC/article/view/4744. Acesso em: 9 may. 2025.