XmlSerializer使用其他引用反序列化XML

I have a XML like this:

我有这样的XML:

<Data>
<Author>
    <AuthorID>1</AuthorID>
    <Name>Max</Name>
</Author>
<Author>
    <AuthorID>2</AuthorID>
    <Name>Steve</Name>
</Author>
<Book>
    <AuthorID>1</AuthorID>
    <Name>Book name</Name>
</Book>
<Book>
    <AuthorID>2</AuthorID>
    <Name>Book name 2</Name>
</Book>
<Data>
<A