?url_ver=Z39.88-2004&rft_id=10.1038%2Fsrep00313&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=Alexander+M.&rft.au=Petersen%2C+Alexander+M.&rft.aulast=Petersen&rft.pages=1-9&rft.issue=313&rft.issn=2045-2322&rft.date=15+March+2012&rft.atitle=Statistical+Laws+Governing+Fluctuations+in+Word+Use+from+Word+Birth+to+Word+Death&rft.volume=2&rft.title=(Nature)+Scientific+Reports&rft.genre=article