Guziec, Frank S.; Russo, Joseph M.; Torres, Felix F.; Long, G. Cornell; Tellez, Mario R.
Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999), 1989 , p. 1068 - 1070

Mora, Henri; Fabre, Jean-Marc; Giral, Louis; Montginoul, Claude
Bulletin des Societes Chimiques Belges, 1992 , vol. 101, # 2 p. 137 - 146

Guziec, Frank S.; Russo, Joseph M.; Torres, Felix F.; Long, G. Cornell; Tellez, Mario R.
Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999), 1989 , p. 1068 - 1070