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Q2018 – Krakow, Poland, 26–29 June 2018 |
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Q2016 – Madrid, Spain, 31 May–3 June 2016 |
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Q2014 – Vienna, Austria, 3–5 June 2014 |
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Q2012 – Athens, Greece, 29 May–1 June 2012 |
 |
Q2010 – Helsinki, Finland, 3–6 May 2010 |
 |
Q2008 – Rome, Italy, 8–11 July 2008 |
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Q2006 – Cardiff, UK, 24–26 April 2006 |
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Q2004 – Mainz, Germany, 24–26 May 2004 |
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Q2001 – Stockholm, Sweden, 14–15 May 2001 |
