Daley, Stephen T. A. K.; Rees, Charles W.
Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999), 1987 , p. 207 - 210
Apparu, Marcel; Comet, Michel; Leo, Pierre M.; Mathieu, Jean-Paul; Du Moulinet, Amaury; et al.
Bulletin de la Societe Chimique de France, 1988 , # 1 p. 118 - 124