Citation: W. Glass et al., VISIBLE EMISSION FROM RARE-EARTH IONS IN NANOCRYSTAL-CONTAINING GLASSES, Journal of non-crystalline solids, 222, 1997, pp. 258-265
Citation: W. Glass, READING FOR MEANING - AN INTEGRATED APPROACH TO LANGUAGE-LEARNING - SWAFFAR,JK, ARENS,KM, BYRNES,H, Language learning, 44(2), 1994, pp. 341-345