This temporary version of the catalogue is updated every six months. The final version wil be updated every day. Search records may be truncated on the right when using a keyword search. You will get the records that contain al the keywords in your query.
Truncation is implicit when keywords refer to string-indexed fields.
You can use either accentuated or unaccentuated characters. Therefore one name may be for different authors, and one author may be represented under several names, indicating the time period covered by each searched catalogue, so that user can decide which is the relevant one. This field is supported only for searches on books published since 1980, not on perdiodicals. Available for perdiodicals since 1989, and for books since May 2000. Do not use any punctuation.