1. R. J. Crampton, Bulgaria 1878–1918 (Boulder, East European Monographs, 1983), pp. 432–4; A Concise History of Bulgaria, 2nd ed. (Cambridge, Cambridge University Press, 2005), p. 137. It received a second loan in February 1915. On the loans and German and Austrian attempts to impose a treaty on Bulgaria in late July 1914,
2. see K. G. Robbins, ‘British Diplomacy and Bulgaria 1914–1915’, SEES, 49 (1971), 565, 571.
3. D. Stevenson, The First World War and International Politics (Oxford, Oxford University Press, 1988), p. 59.
4. K. G. Robbins, Sir Edward Grey: A Biography of Lord Grey of Fallodon (London, Cassell, 1971), pp. 304–9, 325.
5. K. Neilson and T. G. Otte (eds), The Permanent Under-Secretary for Foreign Affairs, 1854–1946 (New York/London, Routledge, 2009), pp.167–9.