Using XML in Databases
http://www.gilbane.com/whitepapers.pl?view=15

Waldt, Dale
Gilbane Report
2004

Abstract:

Today, we can find many applications to manage XML content that demonstrate the power and flexibility that can only be achieved through XML-native databases. Information intensive companies such as the airline and manufacturer described in this paper have achieved significant technical and business benefits from their use of XML standards and database technology over alternative approaches.