According to seven academics, Holyrood has the power to hold the referendum http://www.heraldscotland.com/politics/ ... 1328929454

Here is the memorandum, mentioned in one of the comments on the article, sent to the Committee of Ministers of the Council of Europe and the Organisation for Security and Co-operation in Europe by the Scottish Democratic Alliance http://www.scottishtimes.org/scottish_d ... memorandum The following is a quote from the letter:
We are therefore asking the Council of Europe and the OSCE to keep the political situation in Scotland under close scrutiny, and to intervene actively in the event that action is taken to contravene the rights of the Scottish people under Article 1 Par. 2 of the Charter of the United Nations and subsequent related instruments. We will, of course, keep you informed if any such situation arises.
In addition, we consider it to be absolutely essential that the CoE and the OSCE should monitor this referendum in order to ensure balance and fairness. We are not convinced that the largely foreign-controlled mainstream media in Scotland are capable of maintaining the degree of objectivity that this crucial question demands.
I know very little about this organisation but its action does show that the Yes campaign will not solely be organised by the SNP (the Greens, Socialist parties and various individuals such as Margo MacDonald are in the for camp and ex Labour MP Dennis Canavan has expressed great interest in joining the campaign)