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"Each year we make a promise before the start of The Next Web Conference Europe - to give you an ROI of at least 10 over the value you've invested in the conference. It's why we put ..."^^<http://www.w3.org/2001/XMLSchema#string>
<http://thenextweb.com/voice/2013/04/15/heres-how-we-make-you-get-the-most-out-of-conference-networking/>