For information about a country's sovereign debt, use Bloomberg, available on select computers in the Business Library.

• Enter SOVM for the sovereign debt monitor or DEBT for the sovereign debt function (covers fewer countries) and press return.
• From an individual bond issue, enter HDS for holders.

For sovereign debt ratings:

• Use Bloomberg and enter CSDR
• Use Trading Economics - click on country name to retrieve historical ratings.
• Use Economist Intelligence Unit's sovereign ratings

IMF Global Debt Database