, 6 December 2008 (UTC) 
 :Sorry about that. I figured out what you were trying to do, and restored your reference with better formatting. I deleted the reference you were trying to add to Lens (optics), however, and will do so again since you re-added it. That paper doesn't seem sufficiently relevant to that article. We are not a research directory. References are papers that are actually used in the writing of the article. "Further reading" is for articles that are very relevant, and likely to be of use to readers of the article. A paper on liquid micro-lens arrays is much too specialized for Lens (optics).   08:20