R.  Gnaneshwar and Sivaram, S., ?Conjugate addition of a silyl ketene acetal to alpha,beta-unsaturated lactones?, Synthetic Communications, vol. 36, no. 7, pp. 885-890, 2006.

P.  Srivastava and Srivastava, R., ?Novel method for the protection of amino alcohols and carbonyl compounds over a heterogeneous, reusable catalyst?, Catalysis Communications, vol. 9, no. 5, pp. 645-649, 2008.