?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Targonskii%2C+A.+L.&rft.aulast=Targonskii&rft.aufirst=A.+L.&rft.date=2013&rft.atitle=Extremal+problem+with+variable+quantity+of+points+on+rays&rft.title=International+Conference+%22Complex+Analysis%2C+Potential+Theory+and+Applications%22&rft.genre=article