1998, January 5–11. Olmué (Chile)
Proceedings: Contemporary Mathematics, 240
http://www.ams.org/books/conm/240/
2001, January 4–9. Guanajuato (México)
Proceedings: Contemporary Mathematics, 311
http://www.ams.org/books/conm/311/
2004, June 8-12. Salamanca (Spain)
Proceedings: Contemporary Mathematics, 397
http://www.ams.org/books/conm/397/
2007, August 12–18. Ouro Preto (Brasil)
Proceedings: Geometriae Dedicata, 139(1)
http://link.springer.com/journal/10711/139/1/page/1
2010, December 10-13. Pucón (Chile)
2014, May 20-22. New York (USA)
https://iberoamericancongress.wordpress.com/