Sketchbook: References

• http://www2.astronomicalheritage.net/index.php/show-theme?idtheme=17
• http://space.about.com/od/astronomyspacehistory/a/timelinec.htm
• https://en.wikipedia.org/wiki/Constellation
• http://www.slac.stanford.edu/econf/C0908211/pdf/talk09_vulga.pdf
• http://www.impawards.com/designers/ignition_print.html
• http://www.artofthetitle.com/title/the-last-of-us/
• http://www.worldofmerix.com/