Visitors to the group (Obviously not up-to-date)

2008 January
7-16 Guillermo Tenorio Tagle (INAOE, Puebla, México)
24-31 Richard de Grijs (University of Sheffield, U.K.)
2008 february
6-22 Roberto Cid Fernandes (Universidade Federal de Santa Catarina, Florianópolis, Brasil)
14-20 Guillermo Tenorio Tagle (INAOE, Puebla, México)
2008 march
10-16 Guillermo Tenorio Tagle (INAOE, Puebla, México)
2008 october
1- Mario Armando Higuera Garzón (Universidad Nacional de Colombia, Bogotá)