2011
Wafaa Batat (Ecole Normale Supérieure d'Enseignement Technologique d'Oran, Algeria)
Liang Chen (North East Normal University, Changchun, CHINA)
Ana Claudia Nabarro (USP, Sao Carlos)
2010
Shyuichi Izumiya (Hokkaido University)
Federico Sanchez-Bringas (Universidad Nacional Autonoma de Mecixo)
Victor Hugo Jorge Perez (USP, Sao Carlos)
2009
Goo Ishikawa (Hokkaido University)
Raul Oset (Valencia), October-November
Takayuki Nagai (Hokkaido University) October-November
Ana Claudia Nabarro (USP, Sao Carlos) February-July
Luciana F. Martins (Unesp, SJ Rio Preto) September 2008-August 2009
2008
Shyuichi Izumiya (Hokkaido University)
Simone Moraes (University of Vicosa)
Luciana F. Martins (Unesp, SJ Rio Preto), February
Kentaro Saji (Hokkaido University), twice
2007
Carmen Romero Fuster (University of Valencia)
Shyuichi Izumiya (Hokkaido University)
2006
Luciana F. Martins (Unesp, SJ Rio Preto)
Shyuichi Izumiya (Hokkaido University)
Masatomo Takahashi (Hokkaido University)
Takashi Sano (Hokkai-Gakuen University)
Ana Claudia Nabarro (USP, Sao Carlos)
Antonio Goncalves (Valencia)
2005
Carmen Romero Fuster (University of Valencia)
Juan Nuno-Ballesteros (University of Velencia)
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