20:35, 30 September 2008Vukcevictalkcontribs uploaded File:Graph1.gif (((Information |Description= |Source=I created this work entirely by myself. |Date= |Author=~~~ |other_versions= )))
15:40, 27 March 2007Vukcevictalkcontribs uploaded File:Halecycle.gif (This file (halecycle.gif) was produced by myself, i.e. I am athor. It has not been published anywhere before. It is availabla to anyone else for use, study or publication)