S. P.  Gaikwad, Dhage, S. R., Potdar, H. S., Samuel, V., and Ravi, V., ?Co-precipitation method for the preparation of nanocrystalline ferroelectric SrBi2Nb2O9 ceramics?, Journal of Electroceramics, vol. 14, no. 1, pp. 83-87, 2005.

S. P.  Gaikwad, Samuel, V., Pasricha, R., and Ravi, V., ?Preparation of nanocrystalline ferroelectric BaNb(2)O6 by citrate gel method?, Bulletin of Materials Science, vol. 28, no. 2, pp. 121-123, 2005.