... Medline¹

This work was partially supported by the R2D2 (CICYT TIC2003-07158-C04-03) and ICT EU-India (ALA/95/23/2003/077-054) research projects, as well as by the BUAP-701 PROMEP/103.5/05/1536 grant.

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... Newsgroups²

http://people.csail.mit.edu/jrennie/20Newsgroups/

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... 2002)³

http://www.cicling.org

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... (IFCS-2000)⁴

http://www.Classification-Society.org

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... provided⁵

http://www.nlm.nih.gov/bsd/sample_records_avail.html

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... MEDLINE⁶

ftp://ftp.nlm.nih.gov/nlmdata/sample/medline/

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... (NCI)⁷

http://ncimeta.nci.nih.gov/

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