KOLLO, Karin . Two alternative methods for height transformation. Geodesy and Cartography, [S. l.], v. 34, n. 1, p. 5–11, 2012. DOI: 10.3846/1392-1541.2008.34.5-11. Disponível em: https://journals.vilniustech.lt/index.php/GAC/article/view/10901. Acesso em: 9 may. 2025.