@online{ wiki:latex, author = "Wikipedia", title = "{\LaTeX}---Wikipedia{,} The Free Encyclopedia", year = "2012", url = "http://en.wikipedia.org/wiki/LaTeX", urldate = "25.01.2012" } @online{ wiki:latex-2, author = "Wikipedia", title = "{\LaTeX}", howpublished = "Wikipedia, The Free Encyclopedia", year = "2012", eprint ="wiki/LaTeX", eprinttype = {WikiPedia}, url = "http://en.wikipedia.org/wiki/LaTeX", urldate = "25.01.2012" }