Nicolaus Copernicus. Field J.V. http://www-groups.dcs.st-and.ac.uk/~history/Mathemitician/Copernicus.html May 1, 2001
Nicolaus Copernicus Polish Cleric Astronomer. Lucid Cafe. http://lucidcafe.com/library/96feb/copernicus.html May 1, 2001
The Copernicus Revolution. Tenn J.S. http://phys-astro.sonoma.edu/people/faculty/tenn/copernicanrevolution.html May 1, 2001
When the Earth Moved. Polish American Journal. http://www.polamjournal.com/Library/Biographies/copernicus/body_copernicus.html May 1, 2001
| back to Home Page |