M. S.  Deshpande, Kumbhar, A. S., Puranik, V. G., and Selvaraj, K., ?Supramolecular self-assembled ruthenium-polypyridyl framework encapsulating discrete water cluster?, Crystal Growth & Design, vol. 6, no. 3, pp. 743-748, 2006.

S.  Selvakumar, Chidambaram, M., and Singh, A. P., ?Benzylsulfonic acid functionalized mesoporous Zr-TMS catalysts: an efficient and recyclable catalyst for the preparation of coumarin derivatives by pechmann condensation reaction?, Catalysis Communications, vol. 8, no. 5, pp. 777-783, 2007.