1. A. Räuber, in Current Topics in Material Science, edited by E. Kaldis (North-Holland, Amsterdam, 1987), Vol. 1, pp. 481-601.
2. F. Agulló-López and J.M. Cabrera, Properties of Lithium Niobate, EMIS Data Reviews Series Vol. 5 (INSPEC, London, 1989), pp. 8-17.
3. HOLOGRAPHIC STORAGE IN LITHIUM NIOBATE
4. Optical waveguiding layers in LiNbO3 and LiTaO3
5. Optical Rectification by Impurities in Polar Crystals