Arjunan, Periaswamy Gounder; Lakshmanan, Joghee Gowder; Chandrasekara, Nallappan; Ramalingam, Kondareddiar; Selvaraj, Kuppusamy Journal of the Chemical Society, Perkin Transactions 2: Physical Organic Chemistry (1972-1999), 1985 , p. 1183 - 1186