<?xml version="1.0" encoding="UTF-8"?>
<xs:schema xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xs="http://www.w3.org/2001/XMLSchema"
	xmlns:issue="http://specifications.silverchair.com/xsd/1/49/SCJATS-journalissue-mathml3.xsd"
	targetNamespace="http://specifications.silverchair.com/xsd/1/49/SCJATS-journalissue-mathml3.xsd"
	elementFormDefault="qualified">


	<xs:import namespace="http://www.w3.org/1999/xlink" schemaLocation="xlink.xsd"/>
	
	<!-- 
		*************************************************************************************************************
		Redefine the types that are in common.xsd. Extensions and restrictions would go here, if any. 
		*************************************************************************************************************
	-->
	<xs:redefine schemaLocation="SC-common-mathml3.xsd"> </xs:redefine>

	<!-- 
		*************************************************************************************
		Definition of types and declaration of elements specific to issue meta.
		*************************************************************************************
	-->
	<xs:element name="issue-meta">
		<xs:complexType>
			<xs:sequence>
				<xs:element name="journal-id" type="issue:j-journal-id-type" minOccurs="0"
					maxOccurs="unbounded"/>
				<xs:element name="issue-identifier">
					<xs:complexType>
						<xs:sequence>
							<xs:element name="issn" maxOccurs="2">
								<xs:complexType mixed="true">
									<xs:attribute name="pub-type" use="required"/>
								</xs:complexType>
							</xs:element>
							<xs:element name="volume"/>
							<xs:element name="issue"/>
						</xs:sequence>
					</xs:complexType>
				</xs:element>
				<xs:element name="issue-title" type="issue:j-issue-title-type" minOccurs="0"/>
				<xs:element name="issue-sponsor" type="issue:j-issue-sponsor-type" minOccurs="0"/>
				<xs:element name="pub-date" minOccurs="0" maxOccurs="2">
					<xs:complexType>
						<xs:sequence>
							<xs:choice minOccurs="0">
								<xs:sequence>
									<xs:element name="day" type="issue:sc-day-type" minOccurs="0"/>
									<xs:element name="month" type="issue:sc-month-type"
										minOccurs="0"/>
								</xs:sequence>
								<xs:element name="season" type="issue:sc-season-type"/>
							</xs:choice>
							<xs:element name="year" type="issue:sc-year-type"/>
						</xs:sequence>
						<xs:attribute name="pub-type" use="optional"/>
						<xs:attribute name="publication-format" use="optional"/>
						<xs:attribute name="date-type" use="optional"/>
						<xs:attribute name="iso-8601-date"/>
					</xs:complexType>
				</xs:element>
				<xs:element name="issue-type" minOccurs="0">
					<xs:simpleType>
						<xs:restriction base="xs:string">
							<xs:enumeration value="regular"/>
							<xs:enumeration value="supplemental"/>
						</xs:restriction>
					</xs:simpleType>
				</xs:element>
				<xs:choice minOccurs="0" maxOccurs="unbounded">
					<xs:element name="contrib-group" type="issue:sc-contrib-group-type"/>
					<xs:element name="aff" type="issue:sc-aff-type"/>
				</xs:choice>
				<xs:element name="supplementary-material" minOccurs="0" maxOccurs="unbounded">
					<xs:complexType>
						<xs:choice minOccurs="0" maxOccurs="unbounded">
							<xs:element name="ext-link" type="issue:sc-ext-link-type"/>
							<xs:element name="xref" type="issue:sc-xref-type"/>
						</xs:choice>
						<xs:attribute name="id" type="xs:ID"/>
						<xs:attribute ref="xlink:href" use="required"/>
						<xs:attribute name="content-type" use="required">
							<xs:simpleType>
								<xs:restriction base="xs:token">
									<xs:enumeration value="alternate-cover"/>
									<xs:enumeration value="alternate-cover-caption"/>
									<xs:enumeration value="cover"/>
									<xs:enumeration value="cover-caption"/>
									<xs:enumeration value="front"/>
									<xs:enumeration value="back"/>
									<xs:enumeration value="ed-board"/>
									<xs:enumeration value="toc"/>
									<xs:enumeration value="cover-figure"/>
									<xs:enumeration value="advertising"/>
									<xs:enumeration value="administration"/>
								</xs:restriction>
							</xs:simpleType>
						</xs:attribute>
					</xs:complexType>
				</xs:element>
				<xs:element name="self-uri" minOccurs="0" maxOccurs="unbounded">
					<xs:complexType>
						<xs:attribute ref="xlink:href" use="required"/>						
						<xs:attribute name="content-type" use="optional"/>
						<xs:attribute name="specific-use" use="optional"/>
					</xs:complexType>
				</xs:element>
				<xs:element name="conference" type="issue:sc-conference-type" minOccurs="0"
					maxOccurs="unbounded"/>

				<xs:element name="table-of-contents" minOccurs="0" maxOccurs="1">
					<xs:complexType>
						<xs:choice maxOccurs="unbounded">
							<xs:element name="toc-content">
								<xs:complexType>
									<xs:attribute ref="xlink:href" use="required"/>
									<xs:attribute name="pub-id-type" use="required"/>
								</xs:complexType>
							</xs:element>
							<xs:element name="toc-sec">
								<xs:complexType>
									<xs:sequence>
										<xs:element name="title"/>
										<xs:choice maxOccurs="unbounded">
											<xs:element name="toc-content" minOccurs="0"
												maxOccurs="unbounded">
												<xs:complexType>
												<xs:attribute ref="xlink:href" use="required"/>
												<xs:attribute name="pub-id-type" use="required"/>
												</xs:complexType>
											</xs:element>
											<xs:element name="toc-sec" minOccurs="0"
												maxOccurs="unbounded">
												<xs:complexType>
												<xs:sequence>
												<xs:element name="title"/>
												<xs:choice maxOccurs="unbounded">
												<xs:element name="toc-content" minOccurs="0"
												maxOccurs="unbounded">
												<xs:complexType>
												<xs:attribute ref="xlink:href" use="required"/>
												<xs:attribute name="pub-id-type" use="required"/>
												</xs:complexType>
												</xs:element>
												<xs:element name="toc-sec" minOccurs="0"
												maxOccurs="unbounded">
												<xs:complexType>
												<xs:sequence>
												<xs:element name="title"/>
												<xs:element name="toc-content"
												maxOccurs="unbounded">
												<xs:complexType>
												<xs:attribute ref="xlink:href" use="required"/>
												<xs:attribute name="pub-id-type" use="required"/>
												</xs:complexType>
												</xs:element>
												</xs:sequence>
												</xs:complexType>
												</xs:element>
												</xs:choice>
												</xs:sequence>
												</xs:complexType>
											</xs:element>
										</xs:choice>
									</xs:sequence>
								</xs:complexType>
							</xs:element>
						</xs:choice>
					</xs:complexType>
				</xs:element>
			</xs:sequence>
			<xs:attribute name="version" use="optional"/>
			<xs:attribute name="dynamic-toc-type" use="optional">
				<xs:simpleType>
					<xs:restriction base="xs:string">
						<xs:enumeration value="default"/>
						<xs:enumeration value="topic-driven"/>
					</xs:restriction>
				</xs:simpleType>
			</xs:attribute>
		</xs:complexType>
	</xs:element>
</xs:schema>
