TY - CONF T1 - Preparation and characterization of compositions based on PbO-MgO-Nb2O5 using the sol-gel method JO - JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY PY - 2003/01/01 AU - Beltran H AU - Maso N AU - Julian B AU - Cordoncillo E AU - Carda JB AU - Escribano P AU - West AR ED - VL - 26 IS - 1-3 SP - 1061 EP - 1065 Y2 - 2025/08/21 ER -