Botanisk have : Gennem 50 aar 1874-1924 /

Autor Ostenfeld, C. H., 1873-1931
Vydáno 1924

Flora arctica : containing descriptions of the flowering plants and ferns, found in the arctic regions, with their distribuion in these countries. Part 1, Pteridophyta, Gymnospermae and Monocotyledones /

Autor Ostenfeld, C. H., 1873-1931
Vydáno 1902

The species of the Genus Larix and their geographical distribution /

Autor Ostenfeld, C. H., 1873-1931, Larsen, C. Syrach
Vydáno 1930