Simonsen, Mike (ed.). "Introduction to CVs". mindspring.com. Cataclysmic Variable Network. Archived from the original on 26 February 2008. Retrieved 17 April 2006.
Simonsen, Mike (ed.). "Introduction to CVs". mindspring.com. Cataclysmic Variable Network. Archived from the original on 26 February 2008. Retrieved 17 April 2006.