[1] This paper describes the CINDI subsystem - a part of the CUILT Project for Developing a Virtual Library Prototype.

[2] Libraries use a number of basic catalogue systems such as s Library of Congress, Dewey Decimal and MARC. Even among MARC there are slight differences as in LCMARC and CANMARC.

[3] The idea of the semantic header is to provide bibliographic information about resources and by including both the URN and a list of URLs it also provides a mapping from URN to URL.

[4] Such costs could change over time and require updating.