S. S.  Katkar, Mohite, P. H., Gadekar, L. S., Vidhate, K. N., and Lande, M. K., ?ZnO-beta zeolite: as an effective and eco-friendly heterogeneous catalyst for the synthesis of benzothiazole derivatives?, Chinese Chemical Letters, vol. 21, no. 4, pp. 421-425, 2010.

S. S.  Katkar, Mohite, P. H., Gadekar, L. S., Arbad, B. R., and Lande, M. K., ?ZnO-beta zeolite: as an effective and reusable heterogeneous catalyst for the one-pot synthesis of polyhydroquinolines?, Green Chemistry Letters and Reviews, vol. 3, no. 4, pp. 287-292, 2010.