Add an eventJohan Vos
Java developer
bio from Twitter
Johan Vos recently attended
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Devoxx 2012
12th–16th November 2012
Johan Vos was involved
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Devoxx 2011
14th–18th November 2011
Johan Vos was involved
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Devoxx 2010
15th–19th November 2010
Johan Vos spoke
Speaking history
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