@article{10479, author = "Geod. Inst. Helsinki and IUGG XIX General Assembly. Vancouver, Canada, August 19 - 22, 1987", title = "Geodetic operations in Finland. 1983 - 1986 ", year = "1987", note = "Obr. a tab. v textu. - Liter. - Mapky v příl., 1 sv.", }