The Ariadne knowledge pool system
Communications of the ACM
Electronic Payment Systems
CT-RSA '02 Proceedings of the The Cryptographer's Track at the RSA Conference on Topics in Cryptology
The XML log standard for digital libraries: analysis, evolution, and deployment
Proceedings of the 3rd ACM/IEEE-CS joint conference on Digital libraries
MPEG-21: Goals and Achievements
IEEE MultiMedia
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Distributed digital libraries provide access to multiple sources of information not necessarily located within their physical, legal or commercial sphere through a single point of entry. Charging and billing users for content consumed in such an environment could be a prototypical field of application for micropayment solutions, which instantly collect small amounts of money for services provided. This publication defines requirements for payment methods in the context of distributed digital libraries and examines micropayment schemes for compliance.