http://purl.org/dc/terms/source
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https://collection.rcgs.jp/resource/PACKAGE0009933
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https://en.wikipedia.org/wiki/505_Games (accessed 2018-11-15)
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https://it.wikipedia.org/wiki/505_Games (accessed 2019-10-08)
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https://www.bloomberg.com/research/stocks/private/snapshot.asp?privcapid=47738975 (accessed 2018-10-25)
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https://www.mobygames.com/company/505-games-ltd (accessed 2018-11-15)
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