COMBINATORIAL AND COMPUTATIONAL ASPECTS OF OPTIMIZATION, TOPOLOGY AND ALGEBRA
ACCOTA 2008

You can find information about Oaxaca here:

http://en.wikipedia.org/wiki/Oaxaca%2C_Oaxaca

Tourism and cultural information here:

http://www.oaxaca.travel/guia.php?titulo=img/tit/titg001.jpg&texto=txt/g...

And here:

http://www.tomzap.com/coaxaca.html