Rmer, Ole (Subscribe)
Links
Rundetaarn: Centuries of Astronomy in Denmark
http://www.rundetaarn.dk/engelsk/observatorium/history.htm
Includes section on Rmers works.
Roemer, Ole
http://www.1911encyclopedia.org/Ole_Roemer
Article from the 1911 Encyclopedia Britannica.
Catalog of the Scientific Community: Roemer, Ole Christensen
http://galileo.rice.edu/Catalog/NewFiles/roemer.html
Background data on the scientist.