?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aulast=Sibak&rft.aufirst=S%C3%A1ndorn%C3%A9&rft.au=+Sibak+S%C3%A1ndorn%C3%A9&rft.volume=36&rft.issn=0563-0592&rft.pages=43-52&rft.title=Acta+biologica&rft.atitle=Leaf-anatomical+changes+in+perishing+acaluous+oaks&rft.date=1990&rft.issue=1-4&rft.genre=article