V.  Udayakumar, Alexander, S., Gayathri, V., Shivakumaraiah,, Patil, K. R., and Viswanathan, B., ?Polymer-supported palladium-imidazole complex catalyst for hydrogenation of substituted benzylideneanilines?, Journal of Molecular Catalysis A-Chemical, vol. 317, no. 1-2, pp. 111-117, 2010.