?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Prepelitsa%2C+G.+P.&rft.aufirst=G.+P.&rft.aulast=Prepelitsa&rft.issn=0235-2435&rft.volume=22&rft.pages=103-107&rft.title=Photoelectronics&rft.date=2013&rft.atitle=Non-linear+analysis+of+chaotic+self-oscillations+in+backward-wave+tube&rft.genre=article