https://www.openpetition.de/abgeordnete/vertreter/rolf-hopster-spd-emsland
Free platform for signature campaigns, initiatives, decisions, petitions: Start, collect, debate, change
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https://www.mediapost.com/publications/article/231189/startup-app-hopster-tv-gets-streaming-deal.html?edition=74980
Startup App Hopster TV Gets Streaming Deal - 08/01/2014
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