- Rome, Italy (1992)
- Kanazawa, Japan (1994)
- Wuerzburg, Germany (1996)
- London/Ontario, Canada (1998)
- Catania, Italy (2000)
- San Diego, USA (2002)
- Debrecen, Hungary (2004)
- Montreal, Canada (2006)
- Shanghai, People’s Republic of China (2008)
- Sao Paulo, Brazil (2010)
- Timisoara, Romania (2012)
- Kyoto, Japan (2014)
- Tianjin, China (2016)
- Debrecen, Hungary (2018)
- Gothenburg, Sweden (online congress, 2021)
- Genoa, Italy (2023)