Pinkus, George A.; Sabesan, Arunachalam
Journal of the Chemical Society, Perkin Transactions 2: Physical Organic Chemistry (1972-1999), 1981 , p. 473 - 477
Gore, Peter H.; Nassar, Ahmed M. G.; Saad, Esmat F.
Journal of the Chemical Society, Perkin Transactions 2: Physical Organic Chemistry (1972-1999), 1982 , p. 983 - 986