Saari, Timo, Markku Poutanen, Veikko Saaranen, Harri Kaartinen, Antero Kukko, and Sonja Lahtinen. “Height Determination Techniques for the Next National Height System of Finland - a Case Study”. Geodesy and Cartography 41, no. 4 (December 17, 2015): 145-155. Accessed December 19, 2024. https://journals.vilniustech.lt/index.php/GAC/article/view/2847.