new DOIs, see #23057 and #23058

metadata/mi/mi-02-09-19.xml

+<?xml version="1.0" encoding="utf-8"?>
+<resource xmlns="http://datacite.org/schema/kernel-4" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://datacite.org/schema/kernel-4 http://schema.datacite.org/meta/kernel-4/metadata.xsd">
+  <identifier identifierType="DOI">10.21243/mi-02-09-19</identifier>
+  <creators>
+    <creator>
+      <creatorName>Strohmer, Heinz</creatorName>
+    </creator>
+  </creators>
+  <titles>
+    <title>Schauplatz Computerspiele </title>
+  </titles>
+  <publisher>Medienimpulse</publisher>
+  <publicationYear>2009</publicationYear>
+  <dates>
+    <date dateType="Submitted">2009-12-21</date>
+    <date dateType="Updated">2020-07-10</date>
+    <date dateType="Issued">2009-12-21</date>
+  </dates>
+  <language>de</language>
+  <resourceType resourceTypeGeneral="Text">Article</resourceType>
+  <alternateIdentifiers>
+    <alternateIdentifier alternateIdentifierType="publisherId">5-72-915</alternateIdentifier>
+  </alternateIdentifiers>
+  <rightsList>
+    <rights rightsURI="https://creativecommons.org/licenses/by-nc-nd/3.0/at/deed.de"></rights>
+  </rightsList>
+  <descriptions>
+    <description descriptionType="SeriesInformation">Medienimpulse, Bd. 47 Nr. 2 (2009): 2/2009 - Computerspiele</description>
+  </descriptions>
+</resource>

metadata/mi/mi-02-09-20.xml

+<?xml version="1.0" encoding="utf-8"?>
+<resource xmlns="http://datacite.org/schema/kernel-4" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://datacite.org/schema/kernel-4 http://schema.datacite.org/meta/kernel-4/metadata.xsd">
+  <identifier identifierType="DOI">10.21243/mi-02-09-20</identifier>
+  <creators>
+    <creator>
+      <creatorName>Berger, Christian</creatorName>
+    </creator>
+  </creators>
+  <titles>
+    <title>Kreative Videoproduktionen in der Schule</title>
+  </titles>
+  <publisher>Medienimpulse</publisher>
+  <publicationYear>2010</publicationYear>
+  <dates>
+    <date dateType="Submitted">2010-01-20</date>
+    <date dateType="Updated">2020-07-10</date>
+    <date dateType="Issued">2010-01-20</date>
+  </dates>
+  <language>de</language>
+  <resourceType resourceTypeGeneral="Text">Article</resourceType>
+  <alternateIdentifiers>
+    <alternateIdentifier alternateIdentifierType="publisherId">5-72-916</alternateIdentifier>
+  </alternateIdentifiers>
+  <rightsList>
+    <rights rightsURI="https://creativecommons.org/licenses/by-nc-nd/3.0/at/deed.de"></rights>
+  </rightsList>
+  <descriptions>
+    <description descriptionType="Abstract"> Studienverlag, Innsbruck, 2009 </description>
+    <description descriptionType="SeriesInformation">Medienimpulse, Bd. 47 Nr. 2 (2009): 2/2009 - Computerspiele</description>
+  </descriptions>
+</resource>

metadata/mi/mi-02-09-21.xml

+<?xml version="1.0" encoding="utf-8"?>
+<resource xmlns="http://datacite.org/schema/kernel-4" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://datacite.org/schema/kernel-4 http://schema.datacite.org/meta/kernel-4/metadata.xsd">
+  <identifier identifierType="DOI">10.21243/mi-02-09-21</identifier>
+  <creators>
+    <creator>
+      <creatorName>Ballhausen, Thomas</creatorName>
+    </creator>
+  </creators>
+  <titles>
+    <title>You Gimme Fever...</title>
+  </titles>
+  <publisher>Medienimpulse</publisher>
+  <publicationYear>2009</publicationYear>
+  <dates>
+    <date dateType="Submitted">2009-12-21</date>
+    <date dateType="Updated">2020-07-10</date>
+    <date dateType="Issued">2009-12-21</date>
+  </dates>
+  <language>de</language>
+  <resourceType resourceTypeGeneral="Text">Article</resourceType>
+  <alternateIdentifiers>
+    <alternateIdentifier alternateIdentifierType="publisherId">5-72-917</alternateIdentifier>
+  </alternateIdentifiers>
+  <rightsList>
+    <rights rightsURI="https://creativecommons.org/licenses/by-nc-nd/3.0/at/deed.de"></rights>
+  </rightsList>
+  <descriptions>
+    <description descriptionType="SeriesInformation">Medienimpulse, Bd. 47 Nr. 2 (2009): 2/2009 - Computerspiele</description>
+  </descriptions>
+</resource>