What has the author Ernst Poulsen written?

Ernst Poulsen (July 14, 1881 - October 19, 1960) was a Danish historian and professor at the University of Copenhagen from 1919 to 1951. He wrote extensively about the history of Denmark and the Nordic countries. Some of his most notable works include:

* _Nordens Historie_ (1921-1926), a multi-volume history of the Nordic countries

* _Danmarks Historie i det nittende Aarhundrede: Indtil 1864_ (1925), a history of Denmark in the 19th century until 1864

* _København og Omegn i det nittende Aarhundrede_ (1930), a history of Copenhagen and its surroundings in the 19th century

* _Danmarks Historie under Enevælden_ (1940-1945), a multi-volume history of Denmark under the absolute monarchy

* _København i det nittende Aarhundrede: Efter 1864_ (1951), a history of Copenhagen and its surroundings in the 19th century after 1864

Poulsen was also a prolific publisher of articles, reviews, and other shorter pieces on historical topics. He was widely respected for his scholarship and his ability to write engaging and accessible histories.