External links
- Gowdy, Robert (2014). "Gowdy Spacetimes". Scholarpedia . 9 (3): 31673. Bibcode:2014SchpJ...931673G. doi: 10.4249/scholarpedia.31673 .
{{cite journal}}: CS1 maint: article number as page number (link) - Gowdy, Robert H. (2007). "Of gravitational waves and spherical chickens". Einstein Online . Max Planck Institute for Gravitational Physics. Archived from the original on 2009-05-03. Retrieved 2007-07-30. – a description of the different types of Gowdy universes suitable for a general audience
 | This relativity-related article is a stub. You can help Wikipedia by expanding it. |