Economia & Energia No 22 - Setembro-Outubro 2000 ISSN 1518-2932

Support:

http://ecen.com

Use the form below to search for documents in this web containing specific words or combinations of words. The text search engine will display a weighted list of matching documents, with better matches shown first. Each list item is a link to a matching document; if the document has a title it will be shown, otherwise only the document's file name is displayed. A brief explanation of the query language is available, along with examples. 

Use esse Formulário para buscas relativas à Matriz Energética (nos 22 e 23) Para Buscas em números anteriores vá para http://ecen.com/busca.htm

No 22 and 23: (other issues http://ecen.com/busca.htm)

Query Language

The text search engine allows queries to be formed from arbitrary Boolean expressions containing the keywords AND, OR, and NOT, and grouped with parentheses. For example:

information retrieval

finds documents containing 'information' or 'retrieval'

information or retrieval

same as above

information and retrieval

finds documents containing both 'information' and 'retrieval'

information not retrieval

finds documents containing 'information' but not 'retrieval'

(information not retrieval) and WAIS

finds documents containing 'WAIS', plus 'information' but not 'retrieval'

web*

finds documents containing words starting with 'web'

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