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/usr/share/citation-style-language/styles/springer-mathphys-author-date.csl is in citation-style-language-styles 0~20180122.283b8d871-1.

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<?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="sort-only">
  <info>
    <title>Springer - MathPhys (author-date)</title>
    <id>http://www.zotero.org/styles/springer-mathphys-author-date</id>
    <link href="http://www.zotero.org/styles/springer-mathphys-author-date" rel="self"/>
    <link href="http://www.zotero.org/styles/springer-lecture-notes-in-computer-science" rel="template"/>
    <link href="http://www.springer.com/cda/content/document/cda_downloaddocument/manuscript-guidelines-1.0.pdf" rel="documentation"/>
    <link href="http://www.springer.com/cda/content/document/cda_downloaddocument/Key_Style_Points_1.0.pdf" rel="documentation"/>
    <author>
      <name>Charles Parnot</name>
      <email>charles.parnot@gmail.com</email>
      <uri>http://twitter.com/cparnot</uri>
    </author>
    <category citation-format="author-date"/>
    <category field="generic-base"/>
    <category field="science"/>
    <summary>This style is used by a number of Springer publications.</summary>
    <updated>2017-04-11T14:52:06+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>
  <macro name="author-short-in-citation">
    <names variable="author">
      <name form="short" and="text"/>
      <substitute>
        <names variable="editor"/>
        <names variable="translator"/>
      </substitute>
    </names>
  </macro>
  <macro name="author-in-citation">
    <names variable="author">
      <name sort-separator=" " initialize-with="" name-as-sort-order="all" delimiter=", " delimiter-precedes-last="always"/>
      <substitute>
        <names variable="editor"/>
        <names variable="translator"/>
      </substitute>
    </names>
  </macro>
  <macro name="year-in-citation">
    <date variable="issued">
      <date-part name="year"/>
    </date>
  </macro>
  <macro name="issued-sort">
    <choose>
      <if type="article-journal bill book chapter graphic legal_case legislation motion_picture paper-conference report song" match="none">
        <date variable="issued">
          <date-part name="year"/>
          <date-part name="month"/>
          <date-part name="day"/>
        </date>
      </if>
      <else>
        <date variable="issued">
          <date-part name="year"/>
        </date>
      </else>
    </choose>
  </macro>
  <macro name="author">
    <group>
      <names variable="author">
        <name name-as-sort-order="all" sort-separator=", " initialize-with="." delimiter=", " delimiter-precedes-last="always"/>
        <label form="short" prefix=" " text-case="lowercase" strip-periods="true"/>
        <substitute>
          <names variable="editor"/>
        </substitute>
      </names>
    </group>
  </macro>
  <macro name="editor">
    <names variable="editor">
      <name initialize-with="." delimiter=", " and="text" name-as-sort-order="all" sort-separator=", "/>
      <label form="short" prefix=" (" text-case="lowercase" suffix=")"/>
    </names>
  </macro>
  <macro name="title">
    <choose>
      <if type="bill book graphic legal_case legislation motion_picture report song" match="any">
        <text variable="title"/>
      </if>
      <else>
        <text variable="title"/>
      </else>
    </choose>
  </macro>
  <macro name="publisher">
    <text variable="publisher"/>
    <text variable="publisher-place" prefix=", "/>
  </macro>
  <macro name="page">
    <group>
      <label variable="page" form="short" suffix=" "/>
      <text variable="page"/>
    </group>
  </macro>
  <macro name="access">
    <text variable="DOI" prefix="doi:"/>
  </macro>
  <citation et-al-min="3" et-al-use-first="1" disambiguate-add-year-suffix="true">
    <sort>
      <key macro="author-in-citation"/>
      <key variable="issued" sort="descending"/>
    </sort>
    <layout prefix="(" suffix=")" delimiter="; ">
      <group delimiter=" ">
        <text macro="author-short-in-citation"/>
        <text macro="year-in-citation"/>
      </group>
    </layout>
  </citation>
  <bibliography entry-spacing="0">
    <sort>
      <key macro="author-in-citation"/>
      <key macro="issued-sort" sort="ascending"/>
    </sort>
    <layout>
      <text macro="author" prefix=" " suffix=": "/>
      <choose>
        <if type="bill book graphic legal_case legislation motion_picture report song" match="any">
          <group delimiter=" ">
            <text macro="title" suffix="."/>
            <text macro="publisher"/>
            <date variable="issued">
              <date-part name="year" prefix="(" suffix=")"/>
            </date>
          </group>
        </if>
        <else-if type="article-journal">
          <group delimiter=" ">
            <text macro="title" suffix="."/>
            <text variable="container-title" form="short" suffix="."/>
            <text variable="volume" suffix=","/>
            <text variable="page"/>
            <date variable="issued">
              <date-part name="year" prefix="(" suffix=")"/>
            </date>
          </group>
          <text macro="access" prefix=". "/>
        </else-if>
        <else-if type="chapter paper-conference" match="any">
          <group delimiter=" ">
            <text macro="title" suffix="."/>
            <choose>
              <if variable="container-title">
                <text term="in" text-case="capitalize-first" suffix=": "/>
                <text macro="editor" suffix=" "/>
                <group delimiter=". ">
                  <text variable="container-title"/>
                  <text macro="page"/>
                  <text macro="publisher"/>
                </group>
              </if>
              <else>
                <text term="presented at" text-case="capitalize-first" suffix=" "/>
                <text variable="event"/>
                <text variable="event-place" prefix=", "/>
                <date variable="issued" prefix=" ">
                  <date-part name="month" suffix=" "/>
                  <date-part name="day" suffix=" "/>
                </date>
              </else>
            </choose>
            <date variable="issued">
              <date-part name="year" prefix="(" suffix=")"/>
            </date>
          </group>
        </else-if>
        <else-if type="webpage">
          <group delimiter=", ">
            <text macro="title"/>
            <text variable="URL"/>
          </group>
        </else-if>
        <else-if type="speech">
          <group delimiter=" ">
            <text macro="title" suffix="."/>
            <text variable="event" suffix="."/>
            <text variable="event-place" prefix=", "/>
            <date variable="issued">
              <date-part name="year" prefix="(" suffix=")"/>
            </date>
          </group>
        </else-if>
        <else>
          <group delimiter=", ">
            <text macro="title"/>
            <text variable="URL"/>
            <date variable="issued">
              <date-part name="year" prefix="(" suffix=")"/>
            </date>
          </group>
        </else>
      </choose>
    </layout>
  </bibliography>
</style>