| Nr | Year | Place | City/Country |
|---|---|---|---|
| ICRA 1 | 1974 | Carleton University | Ottawa/Canada |
| ICRA 2 | 1979 | Carleton University | Ottawa/Canada |
| ICRA 3 | 1980 | University of Puebla | Puebla/Mexico |
| ICRA 4 | 1984 | Carleton University | Ottawa/Canada |
| ICRA 5 | 1990 | University of Tsukuba | Tsukuba/Japan |
| ICRA 6 | 1992 | Carleton University | Ottawa/Canada |
| ICRA 7 | 1994 | Cocoyok
Workshop at U.N.A.M. | Mexico |
| ICRA 8 | 1996 | Geiranger
Workshop at Trondheim | Norway |
| ICRA 9 | 2000 | Beijing Normal University | Beijing/China |
| ICRA 10 | 2002 | Fields Institute | Toronto/Canada |
| ICRA 11 | 2004 | Patzcuaro
Workshop at Queretaro | Mexico |
| ICRA 12 | 2007 | Nicolaus Copernicus University | Torun/Poland |
| ICRA 13 | 2008 | Universidade de Sao Paolo | Sao Paulo/Brazil |
| ICRA 14 | 2010 | National Olimpics Memorial Youth Center | Tokyo/Japan |
| ICRA 15 | 2012 | University of Bielefeld | Bielefeld/Germany |
| ICRA 16 | 2014 | Tsinghua University, | Beijing/China |
| ICRA 17 | 2016 |
| Nr | Year | Place | City/Country |
|---|---|---|---|
| ICRA 4.3 | 1985 | University of Durham | Durham/England |
| ICRA 4.7 | 1988 | Banach Center | Warszawa/Poland |
| ICR(T)A 8.5 | 1998 | University of Bielefeld | Bielefeld/Germany |