SIGAEV, V. N., STEFANOVICH, S. Y., CHAMPAGNON, B., GREGORA, I., PERNICE, P., ARONNE, A., LEPARC, R., SARKISOV, P. D., DEWHURST, C. Amorphous nanostructuring in potassium niobium silicate glasses by SANS and SHG: a new mechanism for second-order optical non-linearity of glasses. Journal of Non-Crystalline Solids. 2002, 306(-), 238-248. ISSN 0022-3093. E-ISSN 1873-4812.