.NET XmlSerializer and multiple references to the same object

Question

My repository has List, List and List where an Enrolment has Enrolment.Student and Enrol

Answer 1

How does this sound as a solution:

1. XMLIgnore each secondary reference ie Enrolment.Student & Enrolment.Course
2. create a property for each secondary reference that is used to serialize/deserialize a foreign key for that reference instead - Prefix with XML_FK. eg XML_FK_Student & XML_FK_Course
3. Create a method XML_FinalizeDeserialization that is called after deserialization to load the references using those foreign key properties.