オイゲン・ワルミング
Auflage, 1904 Biodiversity Heritage Library
Den danske planteverdens historie efter istiden. Kopenhagen 1904 Biodiversity Heritage Library
Dansk Plantevaest. Kopenhagen 1906 Biodiversity Heritage Library
Warming-Joahnnsen Lehrbuch der allgemeinen Botanik. 1909
Oecology of Plants: an Introduction to the Study of Plant-Communities. Oxford 1909 Biodiversity Heritage Library, Biodiversity Heritage Library
The Botany of Iceland. 1912-1918 Biodiversity Heritage Library
Mindeskrift i anledning af hundredaaret for Japetus Steenstrups fodsel. Kopenhagen 1914 Biodiversity Heritage Library