LYSAKER, D. I.; PETTERSEN, B.; MATHISEN, O.; SOLHEIM, D. The Norwegian Height System NN1954 Revisited. Nordic Journal of Surveying and Real Estate Research, [S. l.], v. 3, n. 1, 2006. Disponível em: https://journal.fi/njs/article/view/1665. Acesso em: 29 jun. 2024.