?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=+Beck+Mih%C3%A1ly+Tibor&rft.aufirst=Mih%C3%A1ly+Tibor&rft.aulast=Beck&rft.issue=1-4&rft.title=Acta+physica+et+chemica&rft.issn=0001-6721&rft.date=1957&rft.volume=3&rft.atitle=On+the+colorimetric+determination+of+boron&rft.pages=89-90&rft.genre=article