O'Leary.«"Bitcoin, the City traders' anarchic new toy"». Arxivat de l'original el 2013-01-28.[Consulta: 29 gener 2013].«Workers at Morgan Stanley and Goldman Sachs in London and New York have been visiting online Bitcoin exchanges as often as 30 times a day, according to documents seen by Reuters. Neither bank wanted to comment. Employees at almost all the major international banks and numerous trading and investment firms have shown interest.»
Selgin, George.«Quasi-Commodity Money».Prepared for the Liberty Fund symposium, "In Search of a Monetary Constitution Revisited," Freiburg, Germany, April 19-22, 2012. Highly preliminary: please do not quote.[Consulta: 12 juny 2012].
O'Leary.«"Bitcoin, the City traders' anarchic new toy"». Arxivat de l'original el 2013-01-28.[Consulta: 29 gener 2013].«Workers at Morgan Stanley and Goldman Sachs in London and New York have been visiting online Bitcoin exchanges as often as 30 times a day, according to documents seen by Reuters. Neither bank wanted to comment. Employees at almost all the major international banks and numerous trading and investment firms have shown interest.»