<?xml version='1.0' encoding='utf-8'?>
<oai_dc:dc xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
  <dc:contributor>P. Toulmin III</dc:contributor>
  <dc:contributor>A. K. Baird</dc:contributor>
  <dc:contributor>Klaus Keil</dc:contributor>
  <dc:contributor>H. J. Rose Jr.</dc:contributor>
  <dc:creator>B. C. Clark</dc:creator>
  <dc:date>1976</dc:date>
  <dc:description>&lt;p&gt;&lt;span&gt;The argon content of the Martian atmosphere at the Viking 1 landing site is ≤ 0.15 millibar or ≤ 2 percent by volume (95 percent confidence level).&lt;/span&gt;&lt;/p&gt;</dc:description>
  <dc:format>application/pdf</dc:format>
  <dc:identifier>10.1126/science.193.4255.804</dc:identifier>
  <dc:language>en</dc:language>
  <dc:publisher>American Association for the Advancement of Science</dc:publisher>
  <dc:title>Argon content of the Martian atmosphere at the Viking 1 landing site: Analysis by x-ray fluorescence spectroscopy</dc:title>
  <dc:type>article</dc:type>
</oai_dc:dc>