?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=%D0%93%D0%B0%D0%BF%D0%BE%D0%BD%D0%BE%D0%B2%D0%B0%2C+%D0%9B.+%D0%9F.&rft.aulast=%D0%93%D0%B0%D0%BF%D0%BE%D0%BD%D0%BE%D0%B2%D0%B0&rft.aufirst=%D0%9B.+%D0%9F.&rft.issue=42+(5)&rft.date=2008&rft.atitle=The+variability+of+exoskeleton+elements+in+polyplacocystis+ambigua+(protista%2C+centrohelida)&rft.title=Vestnik+zoologii&rft.pages=79-83&rft.genre=article