datacite · svogt0511 · Feb 3, 2026 · Jan 8, 2026 · Jan 12, 2026 · Jan 13, 2026
diff --git a/Gemfile b/Gemfile
@@ -1,3 +1,3 @@
 source 'https://rubygems.org'
 
-gemspec
+gemspec  
diff --git a/Gemfile.lock b/Gemfile.lock
@@ -1,7 +1,7 @@
 PATH
   remote: .
   specs:
-    bolognese (2.5.0)
+    bolognese (2.5.1)
       activesupport (= 7.2.3)
       benchmark_methods (~> 0.7)
       bibtex-ruby (>= 5.1.0)

diff --git a/lib/bolognese/datacite_utils.rb b/lib/bolognese/datacite_utils.rb
@@ -209,7 +209,9 @@ def insert_related_identifiers(xml)
           attributes = {
             'relatedIdentifierType' => related_identifier["relatedIdentifierType"],
             'relationType' => related_identifier["relationType"],
-            'resourceTypeGeneral' => related_identifier["resourceTypeGeneral"] }.compact
+            'relationTypeInformation' => related_identifier["relationTypeInformation"],
+            'resourceTypeGeneral' => related_identifier["resourceTypeGeneral",
+            ] }.compact
 
           attributes.merge({ 'relatedMetadataScheme' => related_identifier["relatedMetadataSchema"],
             'schemeURI' => related_identifier["schemeUri"],
@@ -228,6 +230,7 @@ def insert_related_items(xml)
           attributes = {
             'relatedItemType' => related_item["relatedItemType"],
             'relationType' => related_item["relationType"],
+            'relationTypeInformation' => related_item["relationTypeInformation"],
           }.compact
 
           xml.relatedItem(related_item["relatedItem"], attributes) do

diff --git a/lib/bolognese/metadata.rb b/lib/bolognese/metadata.rb
@@ -1,4 +1,4 @@
-# frozen_string_literal: true
+# frozen_string_literal: false
 
 require_relative 'metadata_utils'
 
@@ -76,8 +76,8 @@ def initialize(options={})
       end
 
       # make sure input is encoded as utf8
-      string = string.force_encoding("UTF-8") if string.present?
-      @string = string
+      string1 = string.dup.force_encoding("UTF-8") if string.present?
+      @string = string1
 
       # input options for citation formatting
       @style = options[:style]
@@ -120,7 +120,7 @@ def initialize(options={})
 
       @regenerate = options[:regenerate] || read_options.present?
       # generate name for method to call dynamically
-      opts = { string: string, sandbox: options[:sandbox], doi: options[:doi], id: id, ra: ra }.merge(read_options)
+      opts = { string: string1, sandbox: options[:sandbox], doi: options[:doi], id: id, ra: ra }.merge(read_options)
       @meta = @from.present? ? send("read_" + @from, **opts) : {}
     end
 

diff --git a/lib/bolognese/readers/crossref_reader.rb b/lib/bolognese/readers/crossref_reader.rb
@@ -144,7 +144,7 @@ def read_crossref(string: nil, **options)
 
         state = meta.present? || read_options.present? ? "findable" : "not_found"
 
-        related_identifiers = Array.wrap(crossref_is_part_of(journal_metadata)) + Array.wrap(crossref_references(bibliographic_metadata)) + Array.wrap(crossref_has_translation(program_metadata)) + Array.wrap(crossref_is_translation_of(program_metadata))
+        related_identifiers = Array.wrap(crossref_is_part_of(journal_metadata)) + Array.wrap(crossref_references(bibliographic_metadata)) + Array.wrap(crossref_has_translation(program_metadata)) + Array.wrap(crossref_is_translation_of(program_metadata)) + Array.wrap(crossref_is_related_material(program_metadata))
 
         container = if journal_metadata.present?
                       issn = normalize_issn(journal_metadata.to_h.fetch("issn", nil))
@@ -395,6 +395,19 @@ def crossref_is_translation_of(program_metadata)
           end
         end.compact.unwrap
       end
+
+      def crossref_is_related_material(program_metadata)
+        refs = program_metadata.dig("related_item") if program_metadata.is_a?(Hash)
+        Array.wrap(refs).select { |a| a.dig("interwork_relation", "relationship_type") == "isRelatedMaterial" }.map do |c|
+          if c.dig("inter_work_relation", "identifier_type") == "doi"
+            { "relatedIdentifier" => parse_attributes(c["inter_work_relation"]).downcase,
+              "relationType" => "Other",
+              "relatedIdentifierType" => "DOI" }.compact
+          else
+            nil
+          end
+        end.compact.unwrap
+      end
     end
   end
 end
diff --git a/lib/bolognese/readers/datacite_reader.rb b/lib/bolognese/readers/datacite_reader.rb
@@ -206,7 +206,8 @@ def read_datacite(string: nil, **options)
             "resourceTypeGeneral" => ri["resourceTypeGeneral"],
             "relatedMetadataScheme" => ri["relatedMetadataScheme"],
             "schemeUri" => ri["schemeURI"],
-            "schemeType" => ri["schemeType"]
+            "schemeType" => ri["schemeType"],
+            "relationTypeInformation" => ri["relationTypeInformation"]
           }.compact
         end
 
@@ -226,7 +227,7 @@ def read_datacite(string: nil, **options)
               "relatedItemIdentifierType" => rii["relatedItemIdentifierType"],
               "relatedMetadataScheme" => rii["relatedMetadataScheme"],
               "schemeURI" => rii["schemeURI"],
-              "schemeType" => rii["schemeType"]
+              "schemeType" => rii["schemeType"],
             }.compact
           end
 
@@ -241,6 +242,7 @@ def read_datacite(string: nil, **options)
 
           a = {
             "relationType" => ri["relationType"],
+            "relationTypeInformation" => ri["relationTypeInformation"],
             "relatedItemType" => ri["relatedItemType"],
             "relatedItemIdentifier" => relatedItemIdentifier,
             "creators" => get_authors(Array.wrap(ri.dig("creators", "creator"))),

diff --git a/lib/bolognese/utils.rb b/lib/bolognese/utils.rb
@@ -67,7 +67,9 @@ class << self
       "OutputManagementPlan" => nil,
       "PeerReview" => "Review",
       "PhysicalObject" => nil,
+      "Poster" => "Poster",
       "Preprint" => nil,
+      "Presentation" => "PresentationDigitalDocument",
       "Report" => "Report",
       "Service" => "Service",
       "Software" => "SoftwareSourceCode",
@@ -103,7 +105,9 @@ class << self
       "OutputManagementPlan" => nil,
       "PeerReview" => "review",
       "PhysicalObject" => nil,
+      "Poster" => "document",
       "Preprint" => nil,
+      "Presentation" => "presentation",
       "Report" => "report",
       "Service" => nil,
       "Sound" => "song",
@@ -280,6 +284,8 @@ class << self
       "Event" => "Event",
       "ImageObject" => "Image",
       "Movie" => "Audiovisual",
+      "Poster" => "Poster",
+      "PresentationDigitalDocument" => "Presentation",
       "PublicationIssue" => "Text",
       "Report" => "Report",
       "ScholarlyArticle" => "Text",
@@ -326,6 +332,8 @@ class << self
       "Event" => nil,
       "ImageObject" => "graphic",
       "Movie" => "motion_picture",
+      "Poster" => "document",
+      "PresentationDigitalDocument" => "presentation",
       "PublicationIssue" => nil,
       "Report" => "report",
       "ScholarlyArticle" => "article-journal",
@@ -348,8 +356,10 @@ class << self
       "Event" => nil,
       "ImageObject" => "FIGURE",
       "Movie" => "MPCT",
-      "Report" => "RPRT",
+      "Poster" => "GEN",
+      "PresentationDigitalDocument" => "SLIDE",
       "PublicationIssue" => nil,
+      "Report" => "RPRT",
       "ScholarlyArticle" => "JOUR",
       "Service" => nil,
       "SoftwareSourceCode" => "COMP",
@@ -406,7 +416,9 @@ class << self
       "OutputManagementPlan" => nil,
       "PeerReview" => nil,
       "PhysicalObject" => nil,
+      "Poster" => "GEN",
       "Preprint" => nil,
+      "Presentation" => "SLIDE",
       "Report" => "RRPT",
       "Service" => nil,
       "Software" => "COMP",
@@ -419,7 +431,7 @@ class << self
 
     RIS_TO_DC_TRANSLATIONS = {
       "BLOG" => "Text",
-      "GEN" => "Text",
+      "GEN" => "Poster",
       "CTLG" => "Collection",
       "DATA" => "Dataset",
       "FIGURE" => "Image",
@@ -428,7 +440,8 @@ class << self
       "JOUR" => "JournalArticle",
       "COMP" => "Software",
       "VIDEO" => "Audiovisual",
-      "ELEC" => "Text"
+      "ELEC" => "Text",
+      "SLIDE" => "Presentation"
     }
 
     BIB_TO_DC_TRANSLATIONS = {
@@ -452,7 +465,9 @@ class << self
       "motion_picture" => "Audiovisual",
       "article-journal" => "JournalArticle",
       "broadcast" => "Audiovisual",
-      "webpage" => "Text"
+      "webpage" => "Text",
+      "document" => "Poster",
+      "presentation" => "Presentation"
     }
 
     SO_TO_BIB_TRANSLATIONS = {
@@ -468,6 +483,8 @@ class << self
       "Event" => "misc",
       "ImageObject" => "misc",
       "Movie" => "misc",
+      "Poster" => "misc",
+      "PresentationDigitalDocument" => "misc",
       "PublicationIssue" => "misc",
       "ScholarlyArticle" => "article",
       "Service" => "misc",

diff --git a/lib/bolognese/version.rb b/lib/bolognese/version.rb
@@ -1,3 +1,3 @@
 module Bolognese
-  VERSION = "2.5.0"
+  VERSION = "2.5.1"
 end
diff --git a/resources/kernel-4.7/include/datacite-contributorType-v4.xsd b/resources/kernel-4.7/include/datacite-contributorType-v4.xsd
@@ -0,0 +1,37 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- Version 1.0 - Created 2011-01-13 - FZ, TIB, Germany
+   2013-05 v3.0: Addition of ID to simpleType element, added values "ResearchGroup" & "Other"
+   2014-08-20 v3.1: Addition of value "DataCurator"
+   2015-05-14 v4.0 dropped value "Funder", use new "funderReference"
+   2024-12-05 v4.6: Addition of value "Translator" -->
+<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns="http://datacite.org/schema/kernel-4" targetNamespace="http://datacite.org/schema/kernel-4" elementFormDefault="qualified">
+  <xs:simpleType name="contributorType" id="contributorType">
+    <xs:annotation>
+      <xs:documentation>The type of contributor of the resource.</xs:documentation>
+    </xs:annotation>
+    <xs:restriction base="xs:string">
+      <xs:enumeration value="ContactPerson" />
+      <xs:enumeration value="DataCollector" />
+      <xs:enumeration value="DataCurator" />
+      <xs:enumeration value="DataManager" />
+      <xs:enumeration value="Distributor" />
+      <xs:enumeration value="Editor" />
+      <xs:enumeration value="HostingInstitution" />
+      <xs:enumeration value="Other" />
+      <xs:enumeration value="Producer" />
+      <xs:enumeration value="ProjectLeader" />
+      <xs:enumeration value="ProjectManager" />
+      <xs:enumeration value="ProjectMember" />
+      <xs:enumeration value="RegistrationAgency" />
+      <xs:enumeration value="RegistrationAuthority" />
+      <xs:enumeration value="RelatedPerson" />
+      <xs:enumeration value="ResearchGroup" />
+      <xs:enumeration value="RightsHolder" />
+      <xs:enumeration value="Researcher" />
+      <xs:enumeration value="Sponsor" />
+      <xs:enumeration value="Supervisor" />
+      <xs:enumeration value="Translator" />
+      <xs:enumeration value="WorkPackageLeader" />
+    </xs:restriction>
+  </xs:simpleType>
+</xs:schema>
diff --git a/resources/kernel-4.7/include/datacite-dateType-v4.xsd b/resources/kernel-4.7/include/datacite-dateType-v4.xsd
@@ -0,0 +1,27 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- Version 1.0 - Created 2011-01-13 - FZ, TIB, Germany
+     2013-05 v3.0: Addition of ID to simpleType element; addition of value "Collected"; deleted "StartDate" & "EndDate"
+     2017-10-23 v4.1: Addition of value "Other"
+     2019-02-14 v4.2: Addition of value "Withdrawn"
+     2024-12-05 v4.6: Addition of value "Coverage"-->
+<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns="http://datacite.org/schema/kernel-4" targetNamespace="http://datacite.org/schema/kernel-4" elementFormDefault="qualified">
+  <xs:simpleType name="dateType" id="dateType">
+    <xs:annotation>
+      <xs:documentation>The type of date. Use RKMS‐ISO8601 standard for depicting date ranges.To indicate the end of an embargo period, use Available. To indicate the start of an embargo period, use Submitted or Accepted, as appropriate.</xs:documentation>
+    </xs:annotation>
+    <xs:restriction base="xs:string">
+      <xs:enumeration value="Accepted" />
+      <xs:enumeration value="Available" />
+      <xs:enumeration value="Collected" />
+      <xs:enumeration value="Copyrighted" />
+      <xs:enumeration value="Coverage" />
+      <xs:enumeration value="Created" />
+      <xs:enumeration value="Issued" />
+      <xs:enumeration value="Other" />
+      <xs:enumeration value="Submitted" />
+      <xs:enumeration value="Updated" />
+      <xs:enumeration value="Valid" />
+      <xs:enumeration value="Withdrawn" />
+    </xs:restriction>
+  </xs:simpleType>
+</xs:schema>
diff --git a/resources/kernel-4.7/include/datacite-descriptionType-v4.xsd b/resources/kernel-4.7/include/datacite-descriptionType-v4.xsd
@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- Version 1.0 - Created 2011-01-13 - FZ, TIB, Germany
+     2013-05 v3.0: Addition of ID to simpleType element, addition of value "Methods"
+     2015-02-12 v4.0: Addition of value "TechnicalInfo"-->
+<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns="http://datacite.org/schema/kernel-4" targetNamespace="http://datacite.org/schema/kernel-4" elementFormDefault="qualified">
+  <xs:simpleType name="descriptionType" id="descriptionType">
+    <xs:annotation>
+      <xs:documentation>The type of the description.</xs:documentation>
+    </xs:annotation>
+    <xs:restriction base="xs:string">
+      <xs:enumeration value="Abstract" />
+      <xs:enumeration value="Methods" />
+      <xs:enumeration value="SeriesInformation" />
+      <xs:enumeration value="TableOfContents" />
+      <xs:enumeration value="TechnicalInfo" />
+      <xs:enumeration value="Other" />
+    </xs:restriction>
+  </xs:simpleType>
+</xs:schema>
diff --git a/resources/kernel-4.7/include/datacite-funderIdentifierType-v4.xsd b/resources/kernel-4.7/include/datacite-funderIdentifierType-v4.xsd
@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- Version 1.0 - Created 2016-05-14 -->
+<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns="http://datacite.org/schema/kernel-4" targetNamespace="http://datacite.org/schema/kernel-4" elementFormDefault="qualified">
+  <xs:simpleType name="funderIdentifierType" id="funderIdentifierType">
+    <xs:annotation>
+      <xs:documentation>The type of the funderIdentifier.</xs:documentation>
+    </xs:annotation>
+    <xs:restriction base="xs:string">
+      <xs:enumeration value="ISNI" />
+      <xs:enumeration value="GRID" />
+      <xs:enumeration value="ROR" />
+      <xs:enumeration value="Crossref Funder ID" />
+      <xs:enumeration value="Other" />
+    </xs:restriction>
+  </xs:simpleType>
+</xs:schema>
diff --git a/resources/kernel-4.7/include/datacite-nameType-v4.xsd b/resources/kernel-4.7/include/datacite-nameType-v4.xsd
@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- Version 4.1 - Created 2017-10-23 -->
+<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns="http://datacite.org/schema/kernel-4" targetNamespace="http://datacite.org/schema/kernel-4" elementFormDefault="qualified">
+  <xs:simpleType name="nameType" id="nameType">
+    <xs:restriction base="xs:string">
+      <xs:enumeration value="Organizational" />
+      <xs:enumeration value="Personal" />
+    </xs:restriction>
+  </xs:simpleType>
+</xs:schema>
diff --git a/resources/kernel-4.7/include/datacite-numberType-v4.xsd b/resources/kernel-4.7/include/datacite-numberType-v4.xsd
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- Version 4.4 - Created 2021-03-05 -->
+<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns="http://datacite.org/schema/kernel-4" targetNamespace="http://datacite.org/schema/kernel-4" elementFormDefault="qualified">
+  <xs:simpleType name="numberType" id="numberType">
+    <xs:restriction base="xs:string">
+      <xs:enumeration value="Article" />
+      <xs:enumeration value="Chapter" />
+      <xs:enumeration value="Report" />
+      <xs:enumeration value="Other" />
+    </xs:restriction>
+  </xs:simpleType>
+</xs:schema>
diff --git a/resources/kernel-4.7/include/datacite-relatedIdentifierType-v4.xsd b/resources/kernel-4.7/include/datacite-relatedIdentifierType-v4.xsd
@@ -0,0 +1,39 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- Version 1.0 - Created 2011-01-13 - FZ, TIB, Germany
+  2013-05 v3.0: Addition of ID to simpleType element; addition of value "PMID"
+  2014-08-20 v3.1: Addition of values "arxiv" and "bibcode"
+  2015-02-12 v4.0: Addition of value "IGSN"
+  2019-02-14 v4.2: Addition of value "w3id"
+  2024-12-05 v4.5: Addition of values "CSTR", "RRID" -->
+<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns="http://datacite.org/schema/kernel-4" targetNamespace="http://datacite.org/schema/kernel-4" elementFormDefault="qualified">
+  <xs:simpleType name="relatedIdentifierType" id="relatedIdentifierType">
+    <xs:annotation>
+      <xs:documentation>The type of the RelatedIdentifier.</xs:documentation>
+    </xs:annotation>
+    <xs:restriction base="xs:string">
+      <xs:enumeration value="ARK" />
+      <xs:enumeration value="arXiv" />
+      <xs:enumeration value="bibcode" />
+      <xs:enumeration value="CSTR" />
+      <xs:enumeration value="DOI" />
+      <xs:enumeration value="EAN13" />
+      <xs:enumeration value="EISSN" />
+      <xs:enumeration value="Handle" />
+      <xs:enumeration value="IGSN" />
+      <xs:enumeration value="ISBN" />
+      <xs:enumeration value="ISSN" />
+      <xs:enumeration value="ISTC" />
+      <xs:enumeration value="LISSN" />
+      <xs:enumeration value="LSID" />
+      <xs:enumeration value="PMID" />
+      <xs:enumeration value="PURL" />
+      <xs:enumeration value="RAiD" />
+      <xs:enumeration value="RRID" />
+      <xs:enumeration value="SWHID" />
+      <xs:enumeration value="UPC" />
+      <xs:enumeration value="URL" />
+      <xs:enumeration value="URN" />
+      <xs:enumeration value="w3id" />
+    </xs:restriction>
+  </xs:simpleType>
+</xs:schema>