xml version encoding UTF-8 -- edited with XMLSpy v2006 sp1 http www al

<?xml version="1.0" encoding="UTF-8"?>
<!-- edited with XMLSpy v2006 sp1 U (http://www.altova.com) by Shonin (Kiev Polytechnic Insitute) -->
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified" attributeFormDefault="unqualified">
	<!--Глобальные элементы-->
	<xs:element name="author1" type="xs:string" fixed="Иванов И. И.">
		<xs:annotation>
			<xs:documentation>Иванов И. И.</xs:documentation>
		</xs:annotation>
	</xs:element>
	<xs:element name="author2" type="xs:string" fixed="Петров П. П.">
		<xs:annotation>
			<xs:documentation>Петров П. П.</xs:documentation>
		</xs:annotation>
	</xs:element>
	<!--Простые типы-->
	<xs:simpleType name="text">
		<xs:annotation>
			<xs:documentation>простой тип, для наложения ограничений на article, content, section, subsection и paragraph</xs:documentation>
		</xs:annotation>
		<xs:restriction base="xs:string">
			<xs:pattern value="[A-Z](\p{Ll}\p{P}\p{Z})+"/>
		</xs:restriction>
	</xs:simpleType>
	<!--Глобальные элементы-->
	<xs:element name="article-list">
		<xs:annotation>
			<xs:documentation>Корневой тип</xs:documentation>
		</xs:annotation>
		<xs:complexType>
			<xs:sequence>
				<xs:element ref="article" maxOccurs="unbounded"/>
			</xs:sequence>
		</xs:complexType>
	</xs:element>
	<xs:element name="article">
		<xs:complexType mixed="true">
			<xs:sequence>
				<xs:element ref="author" maxOccurs="unbounded"/>
				<xs:element ref="annotation"/>
				<xs:element ref="content"/>
				<xs:element ref="recieving-date"/>
			</xs:sequence>
			<xs:attribute name="section" use="optional" default="computers">
				<xs:simpleType>
					<xs:restriction base="xs:string">
						<xs:enumeration value="computers"/>
						<xs:enumeration value="mathematics"/>
						<xs:enumeration value="physics"/>
						<xs:enumeration value="chemistry"/>
					</xs:restriction>
				</xs:simpleType>
			</xs:attribute>
		</xs:complexType>
	</xs:element>
	<xs:element name="recieving-date" type="xs:date"/>
	<xs:element name="author">
		<xs:complexType mixed="true">
			<xs:choice minOccurs="0">
				<xs:element ref="author1"/>
				<xs:element ref="author2"/>
			</xs:choice>
		</xs:complexType>
	</xs:element>
	<xs:element name="content">
		<xs:complexType mixed="false">
			<xs:sequence>
				<xs:element ref="section" maxOccurs="unbounded"/>
			</xs:sequence>
		</xs:complexType>
	</xs:element>
	<xs:element name="section">
		<xs:complexType mixed="true">
			<xs:sequence>
				<xs:element ref="subsection" maxOccurs="unbounded"/>
			</xs:sequence>
			<xs:attribute name="style" use="optional" default="ordinary">
				<xs:simpleType>
					<xs:restriction base="xs:string">
						<xs:enumeration value="ordinary"/>
						<xs:enumeration value="strong"/>
						<xs:enumeration value="selected"/>
					</xs:restriction>
				</xs:simpleType>
			</xs:attribute>
		</xs:complexType>
	</xs:element>
	<xs:element name="subsection">
		<xs:complexType mixed="true">
			<xs:sequence>
				<xs:element ref="paragraph" maxOccurs="unbounded"/>
			</xs:sequence>
			<xs:attribute name="style" use="optional" default="ordinary">
				<xs:simpleType>
					<xs:restriction base="xs:string">
						<xs:enumeration value="ordinary"/>
						<xs:enumeration value="strong"/>
						<xs:enumeration value="big"/>
						<xs:enumeration value="small"/>
						<xs:enumeration value="selected"/>
					</xs:restriction>
				</xs:simpleType>
			</xs:attribute>
		</xs:complexType>
	</xs:element>
	<xs:element name="paragraph">
		<xs:complexType>
			<xs:simpleContent>
				<xs:extension base="xs:string">
					<xs:attribute name="style" use="optional" default="ordinary">
						<xs:simpleType>
							<xs:restriction base="xs:string">
								<xs:enumeration value="ordinary"/>
								<xs:enumeration value="strong"/>
								<xs:enumeration value="big"/>
								<xs:enumeration value="small"/>
								<xs:enumeration value="selected"/>
							</xs:restriction>
						</xs:simpleType>
					</xs:attribute>
				</xs:extension>
			</xs:simpleContent>
		</xs:complexType>
	</xs:element>
	<xs:element name="annotation" type="xs:string"/>
</xs:schema>