Castlereagh's "Letters and Despatches," Second Series, vol. i., pp. 56 and 69; Dumas' "Evénements," ix. 91.
Mémoire of Francis II. to Cobenzl (March 31st, 1801), in Beer, "Die Orientalische Politik Oesterreichs," Appendix.
"Memoirs," vol. i., ch. xiii.
Ulmann's "Russisch-Preussische Politik, 1801-1806," pp. 10-12.