Further Supplementary Protocol Between the Government of the United Kingdom of Great Britain and Northern Ireland and the Government of the Kingdom of Sweden, Amending the Convention for the Avoidance of Double Taxation and the Prevention of Fiscal Evasion with Respect to Taxes on Income, Signed at London on 28 July, 1960, As Modified by the Protocol Signed at London on 25 March, 1966 and the Supp