DOI only CSL style

DOIonly.csl

<?xml version="1.0" encoding="utf-8"?>
<style xmlns="http://purl.org/net/xbiblio/csl" class="in-text" version="1.0" demote-non-dropping-particle="never" default-locale="en-US">
  <info>
    <title>DOI only</title>
    <id>http://www.zotero.org/styles/digital-object-identifier-only</id>
    <link href="http://www.zotero.org/styles/digital-object-identifier-only" rel="self"/>
    <link href="https://forums.zotero.org/discussion/23511" rel="documentation"/>
    <author>
      <name>Raphael Grolimund</name>
      <email>raphael.grolimund@epfl.ch</email>
    </author>
    <category field="generic-base"/>
    <summary>Style for creating Digital Object Identifier (DOI) lists.</summary>
    <updated>2014-06-18T00:00:00+00:00</updated>
    <rights license="http://creativecommons.org/licenses/by-sa/3.0/">This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 License</rights>
  </info>
  <locale>
    <terms>
      <term name="online">&#160;</term>
    </terms>
  </locale>
  <macro name="doi">
    <text variable="DOI"/>
  </macro>
  <citation disambiguate-add-year-suffix="true" disambiguate-add-names="true" disambiguate-add-givenname="true" collapse="year" year-suffix-delimiter=", " after-collapse-delimiter="; ">
    <layout prefix="(" suffix=")" delimiter="; ">
      <text macro="doi"/>
    </layout>
  </citation>
  <bibliography>
    <layout>
      <choose>
        <if variable="DOI">
          <text macro="doi"/>
        </if>
		<else>
		  <text term="online"/>
		</else>
	  </choose>
    </layout>
  </bibliography>
</style>

CSL style for Zotero (and other reference managers) to create a list of Digital Object Identifiers (DOI) with no other information.