Hobson, Dominic (2013). ”What is Bitcoin?”. XRDS: Crossroads, The ACM Magazine for Students (Association for Computing Machinery) "20" (1): ss. 40–44. doi:10.1145/2510124. ISSN15284972.
Hobson, Dominic (2013). ”What is Bitcoin?”. XRDS: Crossroads, The ACM Magazine for Students (Association for Computing Machinery) "20" (1): ss. 40–44. doi:10.1145/2510124. ISSN15284972.