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https://crypto-planet.net/2019/01/09/bitcoin-etf-%ce%ba%ce%b1%ce%b9-%cf%80%cf%89%cf%82-%ce%b8%ce%b1-%ce%b5%ce%be%ce%b5%ce%bb%ce%b9%cf%87%ce%b8%ce%b5%ce%af-%cf%83%cf%84%ce%b7%ce%bd-%ce%b1%ce%b3%ce%bf%cf%81%ce%ac/
Bitcoin-ETF και πως θα εξελιχθεί στην αγορά