↑Paul W. Schroeder, Metternich's Diplomacy at Its Zenith, 1820–1823: Austria and the Congresses of Troppau, Laibach, and Verona (University of Texas Press, 1962).
Kieswetter, James K. "French Diplomacy at the Congresses of Troppau and Laibach." Canadian Journal of History (1969) 4#2 pp. 19–44. online
Schroeder, Paul W. Metternich's Diplomacy at Its Zenith, 1820–1823: Austria and the Congresses of Troppau, Laibach, and Verona (University of Texas Press, 1962).