... Yunes1
Supported by FAPESP grant 98/05999-4, and CAPES. 
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... Souza2
Supported by FINEP (ProNEx 107/97), and CNPq (300883/94-3). 
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...tex2html_comment_mark3
http://www.informatik.uni-koeln.de/ls_juenger/ 
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... CPLEX4
CPLEX is a registered trademark of ILOG, Inc. 
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... ECLiPS${}^e\,$5
http://www.icparc.ic.ac.uk/eclipse 
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1999-12-16