<xs:element name="FilterBy" maxOccurs="unbounded">
    <xs:complexType>
        <xs:choice>
            <xs:element ref="adsml:ValidityPeriod" maxOccurs="unbounded" />
            <xs:element ref="CustomerCategory" maxOccurs="unbounded" />
            <xs:element name="BookingParty" type="PartyFilterType" maxOccurs="unbounded" />
            <xs:element name="Advertiser" type="PartyFilterType" maxOccurs="unbounded" />
            <xs:element name="SellingParty" type="PartyFilterType" maxOccurs="unbounded" />
            <xs:element ref="adsml:Contract" maxOccurs="unbounded" />
            <xs:element name="Publication" maxOccurs="unbounded">
                <xs:complexType>
                    <xs:sequence>
                        <xs:element ref="PublicationReference" minOccurs="0" />
                        <xs:element ref="PublicationCode" minOccurs="0" />
                        <xs:element ref="Name" minOccurs="0" />
                        <xs:element name="PublishedBy" type="PartyFilterType" minOccurs="0" />
                    </xs:sequence>
                </xs:complexType>
            </xs:element>
            <xs:element ref="adsml:Properties" />
        </xs:choice>
    </xs:complexType>
</xs:element>