?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Gaponova%2C+L.+P.&rft.aulast=Gaponova&rft.aufirst=L.+P.&rft.issue=42+(5)&rft.date=2008&rft.issn=2073-2333&rft.atitle=The+Variability+of+Exoskeleton+Elements+in+Polyplacocystis+Ambigua+(Protista%2C+Centrohelida)&rft.title=Vestnik+Zoologii&rft.pages=461-465&rft.genre=article