<ref xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:mml="http://www.w3.org/1998/Math/MathML" id="R17"><label>17</label><element-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Sartoratto</surname><given-names>A</given-names></name><name><surname>Machado</surname><given-names>ALM</given-names></name><name><surname>Delarmelina</surname><given-names>C</given-names></name><name><surname>Figueira</surname><given-names>GM</given-names></name><name><surname>Duarte</surname><given-names>MCT</given-names></name><name><surname>Rehder</surname><given-names>VLG</given-names></name></person-group><article-title>Composition and antimicrobial activity of essential oils from aromatic plants used in Brazil</article-title><source>Brazilian Journal of Microbiology</source><year>2004</year><volume>35</volume><issue>4</issue><fpage>275</fpage><lpage>280</lpage></element-citation></ref>