KOSTINSKY, A. On the principles of a spline extrapolation concerning geophysical data . Reports of the National Academy of Sciences of Ukraine, Kyiv, Ukraine, n. 2, p. 111–117, 2025. DOI: 10.15407/dopovidi2014.02.111. Disponível em: https://nasu-periodicals.org.ua/index.php/dp/article/view/17459. Acesso em: 10 may. 2026.