Belgian catalogues
Catalogues of other Belgian scientific libraries and Belgian collective catalogues.
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Others countries
Catalogues of other libraries in Europe and in the world; lists of libraries for some European countries.

Union catalogues
Union catalogues of other countries in Europe and in the world.

Available books
Lists of available publications in several countries worldwide.

Scriptorium
Cumulative index of the manuscripts dealt with in Scriptorium and in the Bulletin Codicologique (1946-2003), international journal of mediaeval manuscript studies.