1. Note on the phase composition of MgO-Nb2O5 system;Norin;Acta Chem. Scand,1972
2. Butcher, S. J., Relaxor ferroelectricity in (PbxBa1-x)(Mg1/3Nb2/3)O3 ceramics, Ph.D. thesis, University of Leeds, 1989.
3. Optical properties of MgNb2O6 single crystals: a comparison with LiNbO3;Zaldo;J. Phys.: Condens. Matter,1995
4. Fabrication of perovskite lead magnesium niobate;Swartz;Mater. Res. Bull.,1982
5. The use of magnesium carbonate hydroxide pentahydrate in the production of perovskite lead magnesium niobate;Butcher;Third Euro-Ceramics,1993