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